This is a wall hook that can be put up with a 3M Command Strip similar to the thing: http://www.thingiverse.com/thing:221562 but I redesigned it so that it was a bit thicker, had a longer hook and had a groove down the side. The groove is intend to make it easy to design different decorations with a slot in them to go in the groove.

This is a butterfly design. More designs to come.