I didn't like any of the bow tie designs I found, so I worked on a couple bow tie designs in sketchup.
I had to clean up the peg on the clip with a knife or file, but if you are careful they press fit and hold fairly snug.
The clip may need supports.
BowTie.stl | 183.9KB | |
BowTie_8bit.stl | 65.3KB | |
BowTie_sharp.stl | 246.9KB | |
BowTie_waves.stl | 259.5KB | |
Clip.stl | 89.1KB |