Container with a Puzzle Lid

thingiverse

A clever container designed to resemble Dudeney's "The Dovetailed Block" puzzle. It securely holds two or three secure digital cards, making it a unique storage solution. To open it, users must carefully push each corner until one yields and slides open, requiring a bit of trial and error but ultimately providing access to the stored cards. The design benefits from a snug-fitting lid, which adds to its overall aesthetic appeal.