This is the mobile I made for Toad Hill Preschool, not yet painted. The tracing paper gives the shapes a nice glow when light hits them. I love making different sorts of mobiles, and I offer classes for kids to make their own.
Below are some examples of mobiles I'm working on in my kitchen studio. I think they are beautiful unpainted. My favorite way to embellish them is with line drawings using rich, black india ink.