Have you ever used those handy painting cones (https://www.amazon.com/painting-cones/s?k=painting+cones) to raise items from the floor?
You wish you could buy those cones to use on top of your sawhorse?
Make yourself some!
I designed this accessory to assist with painting some boards on top of my Craftsman metal sawhorse (Model CMST11154 https://www.craftsman.com/product/cmst11154/metal-sawhorse?tid=579096)
I made it in two pieces to avoid using support, just glue them together.
While the prints are running, go and read again The Conscience of a Hacker http://www.phrack.org/archives/issues/7/3.txt
The author hasn't provided the model origin yet.