Handle on my daughter's bike has fallen apart. I created this replacement.
Printed in TPU.
UPDATE 2019-07-12: Changed the .scad to be compatible with customizer, avoiding the latest openSCAD features. Added annotations and better quality control. Reduced default quality (increase it when your settings are OK).
Flip it so that the widest part is on the build plate!
When printing in TPU I recommend slicing so that the infill is 100% in the thin part of the handle, but not in the "hand protector" since that will make the print warp strongly (unless you have a heated chamber) and come loose.