3D Puzzles
   About making three dimensional puzzles in wood or other materials.
   http://home.planet.nl/~kalde063/

3D-Puzzles in Foam
   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.
   http://www.cricro.com

Color Cube
   Offers a 3 dimentional puzzle based upon color schemes.
   http://www.colorcube.com

Fozex
   Includes description and photos of a dinosaur fossil exacavation puzzle.
   http://www.fozex.com/

Game Puzzles
   Catalog of original puzzles and games in lasercut acrylic and wood.
   http://gamepuzzles.com

Wrebbit Inc.
   Offers an online catalog and other information.
   http://www.wrebbit.com