20mm x 20mm base mold for miniatures

This is a mold if you for example want to make your own miniatures in FIMO and want a totally square base. You need two pieces, put them together like the picture, put a rubber band around and put fimo into it. You can then either release the rubber band or cut it off when it's time to bake the FIMO (I recommend building the FIMO on the baking sheet), and you'll have a perfectly square base!

Disclaimer: Haven't tried it yet, but the mold is easy to dis-assemble and is rock-hard when assembled