Laserschwert said:

I found these:

The bottom of the tin has a holder, while the inside of the lid has some foam padding, so the discs is fixated on the nub. Although I'm wondering how you get the disc out of the tin... if the edges are too high, you won't be able to get your fingers under the disc.

Also I can't think of a way to put them on a shelf without simply stacking them... not too fancy, I guess.

The side with the little indentation is actually the lid - Note that on the standing container, the smooth side fits within the other (and assumedly nubbed) side. The nub is not a functional nub, but instead decorative (and thus a bit prohibitive for stickers?). The disc sits atop the foam bit on the bottom, resting.

At least, that's my take on it.