A Minecraft block that I designed. there are 2 different faces, to print a full block you need 2 of the faces with the extended corner walls. and 4 of the shorter corner walls. the 2 extended corner wall faces must be placed opposite of one another. 

I printed these on my A1 with a Darkmoon G1 smooth plate.

I use 3/16-inch ball magnets. When placing the magnet, I recommend placing a finger over an already in place magnet to stop it from jumping out of the slot.

Making your own texture is easy simply use the Fill option with edge detection.