Credit card hard wallet. Holds 1 card or many! Requires 4 M310 or M312 bolts and 4 M3 nuts. (You could just super glue it together if you want).
Cards are ejected simply by pushing them through the top. While they are being held in the wallet, there is nothing under tension. This wallet should last you a long time. I have had mine for a few months and its been perfect!
Start with the 2 inner halves, print those out and make sure the cards come in and out like they should. The outer shells are nonessential / optional, the bolts would stick out if dont have the outer halves.
If you just want a super slim wallet then just glue the 2 inner halves together (with the cards out of course.)
If you want to customize your own outer shell, please post your remix!
Post pics if you make one!