Maze

Maze with traps and wrong ways leading to traps. If you fall into trap, you need to start over. If you hear a click it means you fallen into a trap, start over again.
Labyrinth core has integrated supports, which can be removed with twist of screw driver between brown and green support parts (look at photo), removing it might need some force. Don't stab yourself in the eye!!!
I printed spring out of PETG because of it's springy properties. To insert a spring there's a gap in the Maze Shell, insert one end and then push in the other.
3x10mm pin I made from a nail and 2x29 from a TIG welding rod. Use your imagination, but not plastic please :) And fillet or chamfer pins a tiny bit so they are smooth and don't bite plastic.
Insert 3x10mm pin with tweezers into Maze Shell hole facing down. Push in Labyrinth core with "clean" side till it leans against pin. Push pin down with something and push Labyrinth core in a bit till it holds pin. Insert Money core and align holes with Labyrinth core (one square hole and one round hole). Insert 2x29 pin into round hole. Push the rest of Labyrinth core into Maze Shell till it snaps in place or you hear a click. Done! Now try to solve it.

Labyrinth core has to be printed at 0.25mm height, because of integrated supports. Other parts printed at 0.2mm height.
Money core needs support generated by slicer.
Spring printed with PETG, other parts with PLA.