Puzzability
Writes puzzles for adults or kids, print or electronic media, general-interest or made-to-order.
Elverson Puzzle Company
Jacob's Revenge bottle puzzle, the Log Stacker puzzle box, and Bandit the Slot Machine card game. Pennsylvania, USA. Also order toll-free or by mail.
Tessellations
Maker of Puzzellations puzzles (with foam rubber tiles), posters, and kaleidoscopes inspired by M.C. Escher, as well as mathematicians like Penrose and Mandelbrot.
SpaceCubes
3D puzzle challenges imagination, dexterity. Order games sets online, browse animated VRML hints, solutions.
