Drill Stop Collar Stand Metric and Imperial

I bought a 7 Pc. set of drill stop collars and wanted to stand them up on a shelf I had. No holes made to hang on a wall as I didn't want to screw them up in my application or have any hardware visible. Glue or double stick tape would be fine.
Drill stop sizes:
1/8", 3/16", 1/4", 5/16", 3/8", 7/16", 1/2"

I've also added a simple flat version without size labels for a drawer and metric versions as well 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, 12mm