This safe features just 4 components, weighing a total of 26 g. With its short print time and material efficiency, it’s perfect not only as a storage container but also as a compact waste bin for trash or even bamboo fertilizer.

Simply follow these steps to assemble it—inside, there’s a anti‑slip latch that locks securely in place and won’t come loose on its own. To close the lid, position the internal crossbeam according to the right side higher than the left, then turn clockwise until it clicks into place.

Who would ever stash their little secrets inside a tiny keychain safe?

Share your hidden treasures in the comments—I’d love to see what you’ve got!

Could someone actually print a massive safe? We’re eagerly awaiting the big reveal…