And the meta-meta puzzle is, once you found a 3D equivalent, make it a physical object. Both the "easy/medium" and "hard" puzzles look tricky to make in their

And the meta-meta puzzle is, once you found a 3D equivalent, make it a physical object. Both the "easy/medium" and "hard" puzzles look tricky to make in their own way, my gut feeling is that he "hard" puzzle is the easier one to design.