Void Cube - a hollow 3x3x3 cube without centrepieces, which uses a rail mechanism to move cubies
Katsuhiko Taguchi | TarÅ Okamoto | Nobuhiko Okamoto | Taro Okamoto | Katsuhiko Tokunaga | Katsuhiko Shinzato | Vincent Okamoto | ''Straw Millionaire'' by Kiichi Okamoto | Keiko Okamoto | Katsuhiko Ishibashi |