Rickroll music box / No supports

You just got Rickrolled. In real life. With a crank.   Hand this to someone and tell them it plays a surprise song. Watch their face go from curious to betrayed the moment those first notes kick in. This is Never Gonna Give You Up by Rick Astley. The most iconic internet meme of all time. As a fully 3D-printable mechanical music box.   No glue, no metal parts. Everything prints in one go: the gears, the music cylinder, and the crank. The cylinder has "Rick Roll" engraved on it, so there’s no hiding what it is once they look closely. The perfect prank gift. Wrap it nicely. Tell them it’s something special. It is.