I use a number of Brian Dean's magnet dispensers (https://makerworld.com/en/models/60890#profileId-63102) and had them all stuck in a pot so I decided a holder would be worthwhile.
I don't use 2mm, 9mm or 12mm so it only holds the dispenser pens for 3, 4, 5. 6. 8 and 10mm.
I printed in Silk PLA with PLA lettering. You can use any material.
This is for Brian's Version 4