I was just curious if https://www.thingiverse.com/thing:257354 would work, so I reconstructed it from the pics. The main difference is the dimensions, I have made it to work well for euro cents.
It consists of top, center, and bottom part. Print them and glue them together (I have used super glue for my pla print).
Assembling:
Entrance and exit are on opposite sides. Make sure that the hole of the center part is positioned at the two dead ends of top and bottom maze (see pics of the original thing). You can turn any parts, but maybe that makes the maze a bit easier (I did not try).
Print with layer height 0.2 mm, assemble, and enjoy.
Bottom.stl | 55.8KB | |
Center.stl | 6.3KB | |
Top.stl | 54.4KB |