missing square puzzle box triangle illusion —

Founded missing square puzzle box triangle illusion models & stl files for printing
Magic box puzzle
BenDeLapp
Shooting Star Puzzle Piece
MonkeyBoy_Prints
Box for toy blocks
Damir Perisa
Maze Box for a Gift card
dsk3dprinting
Block Puzzle
HouPe
Sun and Moon Secret Box
Multiverso 3D
Dowel Puzzle  Brain teaser
Creative MinerX