Resize the crown and pin and have either a small hair pin or a full sized crown.
crown2.stl is a crown with a double spiral
This piece was designed for my daughter to resembled a classic queen's chess piece's crown.
In the included pictures the crown is printed 50% and 90%. Be sure to re-size the pin the same percentage as the crown before printing.
See also Check Mate - single spiral - Crown hairpin found here https://pinshape.com/items/5347-3d-printed-check-mate-single-spiral-crown-hairpin