This model has print profiles for the full key that is printed in mirrored halves to be glues together, along with a version that is part of a key hanger.

The unique key hanger clips over the bottom of a kitchen cabinet.  It has 4 key hooks and an awesome looking antique key decoration.

The key decoration and hanger print separately and can be super glued together.

I designed this to be screwed into the underside of the cabinet, but the screws weren't needed.  It has a slight interference fit that is tight enough to hold it securely in place.  

I printed the hanger without supports in Bambu matte white PLA with standard settings for 0.2 mm layer height.

The decorative key was printed with CC3D silk antique gold PLA filament (from Amazon).  The print temperatures and speeds were dialed in based on the filament recommendations, and a 0.08 mm layer height was used to obtain the highest possible finish.  This filament looks great, but the supports are a little difficult to remove.