Just for fun, here is a list of 13 mathematically-inspired products that I’ve stumble upon recently.

- Klein bottle house
- Come in/Go away ambigram doormat
- Klein bottle bottle opener
- Chair made of Voronoi cells
- Tiling a floor with irregular pentagons
- A Möbius bridge
- The Pittsburg Steelers logo (and my blog post about it)
- Nesting Fibonacci kitchen knives
- Mathematical clocks and spiral clocks
- Fibonacci sequence rings
- Mathematical holiday cookies
- Fractal jewelry
- Shiny fractal cow

I’m sure there are many more. Add your own discoveries in the comments…

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some lovely mathematically-inspired jewelry:

http://tiny.cc/ieexr

http://tiny.cc/9e14x

while not specifically a product since you have to knit it, this is one of my favorite math-inspired knitting patterns: http://www.delacroix.net/blog/?p=592

Cool. Thanks, Bonny. You can also crochet the hyperbolic plane

I just found another blog that had a similar post to mine—posted just one day before mine. I especially like the Venn diagram tables:

http://mathfail.com/2010/07/mathie-items.html

How about mathematically inspired space-filling (fractal) scarves?

See …