My brother works for the company that produces Plexiglas. So for Christmas I designed him such a t-shirt.

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Although it looks somewhat like a dancing couple, the design actually shows the molecular structure of acrylic glass.
The print on his shirt glows in the dark.

Coxeter and Dynkin Diagrams

For a friend’s PhD defense, I designed a Dynkin diagram shirt. My husband and I also wore them and he got one as a present. Later I complemented the series with Coxeter and affine Dynkin diagrams.

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