Pyramid Puzzle
myminifactory
Not yet printed this due to lack of spare time, however, I created a simple pyramid puzzle for the MakeAnything competition, which probably wont be overly simple to actually solve!
Download Model from myminifactory
With this file you will be able to print Pyramid Puzzle with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Pyramid Puzzle.