Many of our products are based on ideas we have serendipitously bumped into and found attractive. But we also hear from people who help us create a new product, or who pass along a great idea. We mention them in our blog posts, but as the number of contributors has grown, it seems appropriate to also gather them up in a single post.
We would like to thank everyone on this list for their inspiration and assistance. And if you have an idea for us, please let us know!
| Contributor | Product(s) |
| Colin Adams | Corona tiles |
| Barry Cipra | Cipra loops, Cipra City puzzles |
| Keith Copenhaver | Golden b |
| Melissa Freilich | Barnsley fern |
| Tim Lexen | Tricurve tiles |
| Hugh Montgomery | O'Beirne's Cube |
| Norma Robb | Knots |
| Dylan Thurston | Twin Dragon tiles, Fractal Penrose tiles |