I love mathgrrl's Hinged Butterfly (http://www.thingiverse.com/thing:144645) but I wanted a way to clip it onto other objects. Thus, the wonderfully simple/simply wonderful Butterfly Clip was born. Just attach it with a drop or two of super glue. Your mom will love it!

Update: I've added a removable version as well. Clip "removable butterfly clip" onto the rounded side -- no glue required! Print with 100% infill for maximum strength. This version looks best if the butterfly is printed with transparent (or at least semi-transparent) material.

Designed in SketchUp. Attach the clip to the butterfly as shown in the photos.