Wearthat

Why not wear that?

With the WearThat mod, you gain the ability to wear absolutely any item in any armor slot. Yes, you heard that right - absolutely any item. This includes tools, blocks, weapons, other armor pieces and much more - and all of this will actually display on your character!

This mod can theoretically function on the client side as well, but in that case only the visual component will work. For full functionality that allows all players to equip any items, the mod must be installed on the server too.