Creditcard Multitool

thingiverse

This is an all-in-one tool that fits neatly in your handbag. For this to function properly, it can't be made entirely out of plastic. Instead, you could craft it from sheet steel or use a CNC machine if available. This multitool features several handy tools: a belt cutter, a pair of adjustable wrenches, a bottle opener, and two sharp blades for various tasks.