SD cards container

SD cards are great, and it's great that they're small, but it can also be a problem : they easily get lost or spread themselves everywhere on one's desk, until finding them back can be a real challenge…
I got tired of this and thought it could be useful and fun (well, OK, mostly fun actually) to design and print some tiny container where I could stak all my SD cards.
Well, I'm pretty sure lots of people already thought about this and made that kind of stuff, but I really enjoy making these thi