This credit card sized multi-tool system has 80+ functions! - The Gadgeteer
HY-KO Credit Card Multi-Tool KC607 - The Home Depot
Ultimate 11-in-1 Survival Credit Card Multitool By GUARDMAN – Fathers Day Gift - Multipurpose Tactical Wallet Tool With Bottle Opener, Survival Knife & Other Functions Gifts For Men Birthday Dad - Amazon.com
Custom Printed 18-In-1 Credit Card Sized Multi Tools