| 3D Puzzles: About making three dimensional puzzles in wood or other materials. |
| 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. |
| Color Cube: Offers a 3 dimentional puzzle based upon color schemes. |
| Fozex: Includes description and photos of a dinosaur fossil exacavation puzzle. |
| Game Puzzles: Catalog of original puzzles and games in lasercut acrylic and wood. |
| Wrebbit Inc.: Offers an online catalog and other information. |
Classical
