Eggshell Foam Miniature Holder

I'm feeling a little clever with this one. I have some eggshell foam laying around, and I've been using some to hold loose bits and minis to assemble. It works well as a temporary thing, and it doesn't slide around. With one cut of the raised portions of the foam, you have a "third hand" to hold miniatures while glue dries.

Why not just place the minis flat on their bases? I'm finding that the weight of the arm/gun assembly moves on its own more easily with the base down compared to being held like this.

I'm getting better at this kit! Still tricky.