Print multicolor version using MMU or IDEX printers.

Also great for learning ins and outs of your favorite slicer software. With Ultimaker Cura you can even design your own infill. Do other slicers have this ability?

I print with open top and bottom to test different infill patterns.

I always have one or two fish with me as giveaways.

My kids love to play with them.

Print demo: