The Art and Science of Tiling . Penrose tiles at Carleton College. Belousov's Brew . A recipe for making spiraling patterns in chemical reactions. Constructing Boy's surface out of paper and tape.
Various hoaxers make geometric models by trampling plants.
The downstairs half bath . Bob Jenkins decorated his bathroom with ceramic and painted pentagonal tiles. Dutchman Designs . Pentomino and polyiamond patchwork quilt patterns. Helaman Ferguson mathematical sculpture.