Wallet for Cards and Cash

This is a simple wallet that I made in TinkerCad.  It's designed to hold three cards on either side.  Or cards and cash.  Use a length of 1.75mm filament for the hinge.  I used a soldering iron to melt the ends of the filament after it's inserted to hold it in place.  I've only printed this with organic supports.  It might be possible to tweak so that it doesn't require supports?