simple puzzle with a ring —

Founded simple puzzle with a ring models & stl files for printing
The Rong
TheRealRussell
Christmas Gift Puzzle
MakerMaveric
Ring  Holes
3D-mon
Calendar in a puzzle
Marian Choy
Village Puzzle Box
KT3Dprint
TopoPuzzle Hexagon
Ristow Designs
Tetrahex Puzzle
Pentoma