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 to design and print some tiny container where I could stak all my SD cards.
I made three different designs : regular SD card, MicroSD card, and both sizes merged into a twin container. Enjoy ! :)