My wife wanted to send her sister a sun-catcher mobile and commissioned me to design and print a simple, cute mobile that can be shipped in pieces and easily assembled at the destination without use of any tools or adhesives.

Well, actually, she just wanted it to be cute, but I added those other requirements myself.

Regardless, all pieces print flat without supports, assemble and stay together without any tools or adhesives, and hold a respectable load of beads and stuff.