7 model

Free

Credit Card Sized Card

Thingiverse

Free

Credit card catapult (Daily Design 2)

Thingiverse

Free

Credit Card Key Case (quite ueseless)

Thingiverse

Free

Credit Card Wallet + Money Clip

Thingiverse

Free

Credit card holder

Thingiverse

Free

STAR WARS badge ID / credit card holder

Thingiverse

Free

A-10 Warthog Credit Card Size

Thingiverse