Tiny Planets Season 1 Episode 13 Suits You

There's a dance on the Tiny Planet of Stuff, and Bing and Bong are invited. When they arrive, they find that the assorted shapes-circles, triangles, and rectangles--need help finding the costumes that match their shapes. At the dance, though, the shapes get split in half. It's up to Bing to redesign their costumes to fit their newly shaped bodies so that everyone can boogie once again.