I'm seeing pmags for sale with the big igloo on it and didnt want to spend $30 on a pmag (also they're all 30 rounders and I'm in Cali). So here you go. Make as many big igloo pmags as you want for only $1.

All I had when I tested it was flex seal. Thinner sprays will turn out better. I'm going to be picking up some white cerakoat and testing it.

If you want to support this you can buy it on pinshape for $1

https://pinshape.com/items/58006-3d-printed-big-igloo-pmag-stencil