I lost the key to my curio cabinet, used Skeleton Key by emmett as a template and made the key longer to fit in a deeper hole. Original print was slightly too large, scaled to 85% fit my cabinet perfectly and locks/unlocks with ease!

Using Cura as my slicer, I rotate 90 degrees to lay flat and I blocked supports from the handle and shaft, but left supports under the paddle/tip of the key.

Printed on an Ender3 Pro