Keyholder

This keyholder is basically a redesign of the kind we are already familiar with but with a twist. This design can hold up to 4 standard keys, including some car keys.

This one is designed to use local hardware components and uses minimal support, it also has a side for mounting a quick release for keys you only need once in a while.

I've uploaded in 3mf and the original Fusion 360 file so you can parametrically modify the design to your needs if you want.