Stackable Multi-Compartment Diamond Painting Tray

All the Credit to B2000, this is a remix of his design. I found it to be very useful, but wanted a stackable version of it. Bonus: It spins like hell, better don't show this to your Kids.

Consider using organic supports for the hole in the bottom. Might be easier to remove than standard support.

Only some small modifications in the center part of the model were made to make it stackable.