Indeed, there are extensive lists. I appreciate a good burr, though many of them get the better of me. There was a discussion at IPP in DC over burr puzzles, in that there are only so many possible combinations for, say a 216 pixel cube burr design.
You can look at countless designs of others, but there are just so many documented that it takes a lot of research to know if it has been done before. The subject came up because some felt that a puzzle crafted by a prominent designer had been done before. Indeed it had been, but honestly both designers had come up with the same design independently.
Oli's Packing Puzzle
Re: Oli's Packing Puzzle
The meaning of life is 42.