Question: Displaying my collection

[sherwoods12]

I have a "shadow box" kind of picture frame (18" X 24" X 1" deep).
I would like to display a group of cpus in it but need a way to hold them in place. I thought about using a large piece of black anti-static foam, mounted to a piece of hard board. I am not sure if that is a good way and before I spend $30 on the foam, I wanted to ask for suggestions or comments.
Thanks for the help,
Doug

[CPUShack]

I've used it for several display cases, works well