Color Cube
colorcube.com
Offers a 3 dimentional puzzle based upon color schemes.
3D-Puzzles in Foam
cricro.com
Flat-to-box puzzles in foam. Six square can build a cube, combining five squares with two pentagon pieces gives pentagon box. Six levels. Solutions too.
Game Puzzles
gamepuzzles.com
Catalog of original puzzles and games in lasercut acrylic and wood.
Wrebbit Inc.
wrebbit.com
Offers an online catalog and other information.
3D Puzzles
home.planet.nl
About making three dimensional puzzles in wood or other materials.
Fozex
fozex.com
Includes description and photos of a dinosaur fossil exacavation puzzle.