I made this model for a Halloween costume to make Minecraft command blocks.

(Best printed with 1mm nozzle to save time)

Instructions:

Print out the 2d picture of the foldable command block on a normal printer, Then 3D print the cube, after the cube is finished cut out the 2D pictures then fold the paper around the cube and glue it on. Wait for the glue to dry and now you have your very own tiny command block!