It is designed to fit candies and chocolates – use it well.

It can be printed without supports, in two different colors. 

How to assemble: arrange the top and the bottom as shown in the picture, and rotate counter-clockwise.

There is a spot on the right side for a pin to make a puzzle harder. A piece of thick wire or filament will work. I glued 2x2mm magnets inside the slots to keep 8mm long steel wire from falling out.

Onshape model can be found at https://cad.onshape.com/documents/dd8345f1a38b3e736d8446a7/w/29a04f4b6de385b7e17b0270/e/1850f7bcb617b33bc311c4a7