a trio of keychain puzzles —

Founded a trio of keychain puzzles models & stl files for printing
Letter A MMU
muddymaker
Tower of Hanoi Puzzle
3Dprintedgr
Towers of Hanoi
mathiaspl20
Ball Puzzle  Brain teaser
Creative MinerX
Christmas Tree Puzzle
Brett Casteel
Photo Puzzle
gianluca.c
Test Prints
FastPrint3D