Imgur user [Criand] has been hard at work on his own project made entirely out of paper, a combination lock that can hold a secret message (reddit post). The motivation for the project was as a ...

Laser cut plywood boxes with combination locks are even cooler, especially when the combination is entered on four separate number selectors, on four sides of the very same box. That’s exactly ...

Combination locks, in particular (especially TSA-approved locks), are created to lock luggage shut while still allowing airport security staff to look inside without damaging the lock.