If you want something smaller to protect your pellets and display them at the same time, then these cases are pretty good. You can stack them, hang them on the wall, or stand them individually on a shelf. They are quite soldily made, with a leather-look finish and genuine glass window. They cost about £11 on fleabay.
https://www./itm/72-Earring-Ring-Jew...cAAOSw18Ndy8tF