I think many of us here are tinkerers at heart (at least I am) and along with Home Automation I am also having fun with my 3D printer. I already see there is an old 3D printer topic in the forum.
One of the things I like best is to find a model for my Home Automation gear, or if it does not exist, design something myself.
So I would be interested to see if others have either found or designed something interesting for their HA needs.
To start this of, here are 2 of my own designs: