Kids broke their rubber band loom hook? No problem! This hook works better than the ones that come with the loom kits.

New files take out stress concentration where the handle used to neck down to the hook. Now uses a drafted extrusion, and should withstand even the most ham fisted kid.

25% infill
raft and supports on
.2mm layer height
Go for a smaller layer height if you can manage. My tip always seems to get clogged when I go smaller than .2

Feel free to play with the model to adapt the hook size and shape. This seems a good size for the rubber bands my kids use.