If you have a Raspberry Pi computer board, you can make a great case for it out of an Altoids mint tin.
1 Raspberry Pi computer board
1 Altoids mint tin
1 Plastic gift card
1 Dremel or Small drill
1 Tin snips or diagonal cutter
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Step 1: 1) Left side of tin
Step 1: Drill a hole for the Pi LED corner at the bottom front left corner of tin; then, with tinsnips or diagonal cutter, cut out large area (as indicated in picture) for the Ethernet & USB ports in the left side of the tin.