Introducing the MÖDWAL-- A modular, customizable wallet system. 

Print the bottom plate, a spacer, and a top plate, in whatever material you like. Then, choose from a neat retro ridged top plate that could include a clip, or a cash stash. Screw it all together with some Maker Supply BT2.6x8 SHCS screws, and you've got a custom, compact, and durable wallet. If you make sure your preferred payment method is on the bottom, and it can even be used for NFC without having to fish the card out. 

More accessories will be coming soon, as well as spacers and baseplates that allow for a higher card capacity. Please let me know what you'd like to have, and I'll see what I can do!