This is an old treasure chest, the sort of thing you might expect to find in a shipwreck or a pirates' den. The edges are all weathered with rust, and the wood is showing hints of mold and age. The lock on the front is still sturdy, though, so whatever treasure has been hiding there is probably going to stay there for yet a while to come. This model and the materials were made in Blender. The rust effect is applied with the texture paint tool, meaning that it should be very easy to add or remove rust on Blender, should you want more or less for any reason.