Hi, I made these simple 3 bottle caps dispenser that you can use in the garden or for other use .You can download it from:
- Pinshape https://pinshape.com/items/34221-3d-printed-bottle-caps-dispenser-for-garden
- Thingiverse http://www.thingiverse.com/thing:2233976
good print 
https://youtu.be/xAxI50_pr6k