A set of musical spoons designed for 3D printing (no supports required), which can be used as a percussion instrument.  The shape of the instrument allows for you to create several different types of sounds and can be played in various ways.   As designed, the spoons are just over 22 cm in length, but can also certainly be scaled to preference.

I'm not a percussionist myself, but here's a quick video of me showing how they're used:

I was inspired to try designing these after I saw this fun video of the wooden spoons from Heritage Musical Spoons in action.  I have no affiliation with Heritage, but would certainly recommend giving them a look for those looking to take a step up from what can be done with plastic.