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Reposted by Hanusa Design

Rebecca M. Townsend @rmtownsend.bsky.social · 11/09/2026

My mathematical jewelry @hanusadesign.com arrived today! Thank you @mathzorro.bsky.social !

A necklace, two pendants and a pair of earrings with business cards from Hanusa Design, Mathematical Jewelry hanusadesign.com

Hanusa Design @hanusadesign.com · 06/08/2026

Thanks for your interest! They are the three patterns that you can find here: christopherhanusa.com/voronoi If there's another pattern you see you would like on a scarf let me know and I can make it happen.

christopherhanusa.com

Christopher Hanusa - Voronoi Art

Based on the mathematics of Voronoi diagrams.

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Hanusa Design @hanusadesign.com · 05/08/2026

At @joinmaa.bsky.social Math Fest? So is @hanusadesign.com Mathematical Jewelry. Stop by Booth 321 all the way at the back of the Exhibits! See you today, tomorrow, and Friday! #mathjewelry

A bald man, @mathzorro, standing in front of a booth filled with colorful nylon jewelry and metal jewelry. In the background is a poster that says Need a unique gift? Hanusa Design Mathematical Jewelry

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Hanusa Design @hanusadesign.com · 03/08/2026

Who would win? An army of dodecahedra or an army of hypercubes?

A pile of colorful geometric jewelry. Many dodecahedra on the left and many hypercubes on the right.

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Hanusa Design @hanusadesign.com · 01/08/2026

Jewelry assembly mode is full steam ahead of @joinmaa.bsky.social Math Fest

Piles of styles of colorful geometric jewelry.

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Hanusa Design @hanusadesign.com · 27/07/2026

Thanks for your kind words, Martin!

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Hanusa Design @hanusadesign.com · 26/07/2026

Reach out to chris at hanusadesign dot com if you want to start a conversation about this or if you would like to discuss mathematical entrepreneurship. At the current time I still plan to supply retail clients (museums and independent shops) with wholesale items on demand. On to new adventures!

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Hanusa Design @hanusadesign.com · 26/07/2026

If there is someone out there who is particularly interested in learning about the mathematical jewelry business and wants to work with/own an established brand, I will consider partnerships or a sale. Otherwise, I intend to wind down the retail part of my business by the end of 2026.

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Hanusa Design @hanusadesign.com · 26/07/2026

I will be attending and exhibiting at MAA Math Fest in Boston in early August 2026 with my inventory for people who want to peruse the stock I have on hand. Afterwards I will be cataloging the remaining inventory on hanusadesign.com and set up a going out-of-business sale for whatever remains.

hanusadesign.com

Hanusa Design Mathematical Jewelry

mathematical jewelry, math jewelry, maths jewellery, unique jewelry, 3D printed jewelry, designer jewelry, fashion jewelry, geek jewelry, geek chic, geekchic, nerd jewelry, smart jewelry, nyc jewelry,...

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Hanusa Design @hanusadesign.com · 26/07/2026

Some life news: I am planning to step back from Hanusa Design in the coming months. It has been a wonderful ride over the past nine years: learning, growing, and meeting people from around the world who enjoyed my jewelry. As I start my sabbatical year, I want to focus my attention in new ways.

A picture of a smiling person in a natural background with text surrounding him. Above it says Hanusa Design CLOSING. Below it says Learn more here.

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Madeleine Shepherd @studioknotunknot.bsky.social · 08/04/2026

If you're in Edinburgh this month, go get some of my #cellularautomata knits from @summerhallarts.bsky.social boutique. #mathematicalknitting #computationalknitting

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Hanusa Design @hanusadesign.com · 20/01/2026

Hanusa Design jewelry on display in France!

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Hanusa Design @hanusadesign.com · 06/12/2025

Plenty of Mobius necklaces available in stock that can be sent out in the coming days! hdsn.us/MN328 Check out hanusadesign.com for a wide selection of mathematical gift ideas! #mathjewelry #MathSky

A brass metal ring in the shape of a Mobius strip lying on a slate background

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Hanusa Design @hanusadesign.com · 23/11/2025

I am excited to share my collaboration with the gift shop at the New York Hall of Science (@nysci.bsky.social), an amazing science museum located right here in Queens, NY. As of Fall 2025, Hanusa Design owner Christopher hanusa (@mathzorro.bsky.social) is featured as a local artist in the shop!

A bald white man wearing a patterned blue shirt and a triangular pendant in the foreground. In the background is a red sign that says nysci Science Shop.

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Hanusa Design @hanusadesign.com · 23/11/2025

I'm very happy about this collaboration and look forward to building it further over time. And many thanks to @nysci.bsky.social for arranging for these professional pictures with me and my jewelry in the shop.

The same man standing next to the jewelry on the display stand.

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Hanusa Design @hanusadesign.com · 23/11/2025

Many museum shops are run by a giant conglomerate, but not the nysci Science Shop! Through this collaboration I've worked directly with Sanjay, the retail manager, who curates his store with hand-picked gift ideas. You should visit the museum and then stop by the store to see the wide selection.

The same man standing behind a collection of colorful jewelry presented tastefully on a display stand. They are in the gift shop at the New York Hall of Science with plenty of science gift ideas.

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Hanusa Design @hanusadesign.com · 23/11/2025

There is now a wide selection of Hanusa Design jewelry on sale in the @nysci.bsky.social gift shop. Each piece has a mathematical significance, was 3D printed in nylon, and dyed in bright colors. If you're not nearby, you can shop online at shop.nysci.org. #mathjewelry

Colorful jewelry on jewelry cards held by the artist.

Brightly colored Hanusa Design Jewelry in cello packaging on the display stand.

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Hanusa Design @hanusadesign.com · 23/11/2025

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Reposted by Hanusa Design

Wandering Scientist @wandsci.bsky.social · 22/11/2025

Trying to support artists this holiday season! I bought a silk scarf from a local artist for my MIL today and just ordered some jewelry from this shop for my math major daughter

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Hanusa Design @hanusadesign.com · 20/11/2025

Its high-time for pi-time! Check out these mini pi earrings just waiting to be assembled. So cute! So mini! (0.5 in / 12.6mm wide) So many! Order yours today: hdsn.us/NE200 #MathSky #mathjewelry #geekchic #geekgifts

A pile of colorful pendants in the shape of a pi inscribed in a circle

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Hanusa Design @hanusadesign.com · 19/11/2025

The merkaba has long been a mystic symbol. At its heart is the intersection of two tetrahedra. Here is my take on this classic form, replacing the sharp lines by soft curves. Merkaba Earrings available now: hdsn.us/NE221 #MathSky #mathjewelry #nylonearrings #3dprinted #merkaba #sacredgeometry

Two white earrings that look like a star on a gray background

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Hanusa Design @hanusadesign.com · 18/11/2025

I know, I know, it's hard to improve on the cube. But hear me out! What if you interlock two wireframe cubes together? Sure, it's crazy. But wait there's more! What if you attach a third one? And you can wear them! On your ears? What?! hdsn.us/NE210 #MathSky #cubes #nylonjewelry #3dprinted

Red earrings made out of three dangling cubes

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Hanusa Design @hanusadesign.com · 17/11/2025

I definitely wanted the projection to look like K3,3 as I draw it on paper. Then I wanted it to be rotationally symmetric around the z-axis. Last, I wanted it not to self-intersect. That pretty much left me with this sort of embedding. I used splines to make the "3D edges" all bump out similarly.

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Hanusa Design @hanusadesign.com · 16/11/2025

Forbidden subgraph earrings - wear a theorem on your ears! Kuratowski's theorem says that a graph is planar if and only if it contains neither a K5 nor a K3,3 as a subgraph. Here are those two forbidden subgraphs. Available at hdsn.us/NE230. #MathSky #mathjewelry #gomath

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Hanusa Design @hanusadesign.com · 17/11/2025

It was exciting to choose an embedding :)

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Hanusa Design @hanusadesign.com · 17/11/2025

☀️☀️☀️☀️ So happy to hear that! 🌞🌞🌞🌞

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Shelby Strong 💗💜💙 @sneffleupagus.bsky.social · 17/11/2025

I always get compliments on my mathy earrings and if you also want to be fabulous, you need to check out @hanusadesign.com

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Hanusa Design @hanusadesign.com · 16/11/2025

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Hanusa Design @hanusadesign.com · 31/10/2025

Hi! I turn mathematical ideas into wearable art. I design #mathjewelry 💍 using computational software, bringing them to life through a 3D printing process (SLS nylon or lost-wax casting). Free US shipping over $99. Visit hanusadesign.com to see the full collection. #MathSky #mathart #smallbusiness

Trefoil pendants in rose gold plated brass, brass, and silver on a slate background.

Colorful geometric earrings made up of wireframe cubes arranged in an abstract way

Two small yellow geometric earrings made up of tetrahedra on a dark teal and blue background

Two gold plated hypercubes stacked on top of each other on a slate background.

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Reposted by Hanusa Design

Christopher Hanusa @mathzorro.bsky.social · 10/09/2025

On Friday at Noon (EDT) I am giving a talk in the New York Combinatorics Seminar. The title is: "Mathematical illustration through a combinatorial lens" in which I share my decade-long journey as a mathematical artist and jewelry maker and how it intertwines with my combinatorics research.

A gray figure on a white background. The form has many lines criss-crossing and represents a four dimensional knight's tour.

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Reposted by Hanusa Design

Christopher Hanusa @mathzorro.bsky.social · 17/07/2025

The show went great! It was so nice to be able to share the pieces with everyone. Lots of excitement and enthusiasm for the designs. And everyone else's work was amazing!!

Interested onlookers gazing at the jewelry

A bald white man standing next to a stand containing the jewelry.

A white woman with grey hair wearing black clothes and the jewelry next to the same bald white man

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Hanusa Design @hanusadesign.com · 16/07/2025

Hanusa Design on the runway in the Netherlands!

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Hanusa Design @hanusadesign.com · 03/05/2025

I was fortunate to receive a large order; so I can share with you the five metals I offer at @hanusadesign.com side-by-side! Top row: silver and brass. Bottom row: rhodium-, rose gold-, and 14k gold-plated brass. This is my popular Möbius necklace, available at hdsn.us/MN328.

Five Möbius bands in five different metals on a black slate background

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Hanusa Design @hanusadesign.com · 05/03/2025

Day 5 of #MathArtMarch is discovery. What do you get when you build a 3D analog of the Koch snowflake? Start with a tetrahedron and add smaller and smaller tetrahedra to the boundary. Keep going and you get ... a CUBE?!?!? 🧊🧊 Koch Tetrahedron: hdsn.us/ME234 Read more: hdsn.us/read 🧮 #mathjewelry

Four earrings arranged in a square. The earrings are made up of tetrahedra but make the shape of a cube.

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Hanusa Design @hanusadesign.com · 04/03/2025

#MathArtMarch for 3/4/25 (nice numbers btw!) "swirly" ... that made me think of my rotini earrings. (pasta ftw!) Each model swirls to replicate a different mathematical function. From left to right: |x| (x+sin(x)) sawtooth, x^2, x^3, e^x They're so fun! hdsn.us/rotini #MathSky #mathjewelry

Two red cylindrical earrings with swirly patterns on a white background.

Six cylindrical earrings with different swirly patterns on a teal background.

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Hanusa Design @hanusadesign.com · 03/03/2025

The #MathArtMarch prompt for 3/3 is "Nature". This made me think about the cute honeycomb earrings I designed to go with my honeycomb pendant. They're a mixture of geometric (hexagons) and organic (generative Voronoi). Earrings: hdsn.us/ME218 Pendant: hdsn.us/SS110 #mathjewelry #MathSky

Two small brass hexagonal earrings with a Voronoi pattern on a slate background.

Two small steel hexagonal earrings with a Voronoi pattern and a larger steel hexagonal pendant on a slate background.

A gold colored steel hexagonal pendant sitting in front of a container of honey.

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Hanusa Design @hanusadesign.com · 02/03/2025

And since it's already March 2 in many parts of the world, I'll share mathematical jewelry on a three-dimensional square grid: 3D Plus Earrings, made up of seven cubes. The grid structure provides gives different views from different angles. hdsn.us/NE206 #mathjewelry #MathSky #MathArtMarch

Maroon, Red, Yellow, Teal, Blue, and White 3D Plus Earrings arranged haphazardly on a white background.

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Hanusa Design @hanusadesign.com · 02/03/2025

What great prompts! I have some jewelry that fit many of these words; I'll see if the other topics inspire new pieces. Day 1 of #MathArtMarch is my Circle Around Pendant, featuring circles of circles! hdsn.us/MP414