Y’all want some cool math-related stuff? Check out this website.
- Skew dice.
- Shapes of constant width.
- Symmetry groups wrapping paper (I don’t know why, but I love the symmetry groups. I’ve blogged about them a few times.)
- Torus balloons.
- Math stack playing cards.
- RGB/CMYK earrings.
- Galton board (Matt, I think you showed this to me once?)