Even though I printed this before, it got rejected when someone bought it. I rebuilt it a bit thicker (0.8mm). Unfortunately it raises the cost, so I lowered the markup to compensate.

I did that with a head and it worked really really well. Most hobby shops have a myriad of options to choice from. I used this powdered plaster that when mixed with water turns hard as a rock. It has almost the same color as the White Strong and Flexible too!