I love Tetris, and these tetrominos by Westy are already perfect. I made this Tetris Puzzle Cube Stand to fit his terminus perfectly.
I sliced the stand at 0.2mm layer height with 55% infill for the bottom and 25% for the rest.
For the proper puzzle you need:
Stand x1
I x2
O x2
J x2
L x2
S x2
Z x2
T x4
Have fun and keep printing.
The author hasn't provided the model origin yet.