It's a fantastic and quick project! I use two layers of thin black foam. The top layer of foam sheet has cut-outs for the various types of media except microSD

It's a fantastic and quick project! I use two layers of thin black foam. The top layer of foam sheet has cut-outs for the various types of media except microSD card, which is held in place with a small dab of glue. They're pressed against the glass and has survived 2 moves without issue.