When painting and finishing woodworking projects, I'll often use a small triangular chunk of wood upon which to rest a painted face. I finally got around to designing a small (3.5cm tall) pyramid or cone thing to do the job more reliably.
A few notable features stand out relative to other options you might find:
Did a few test prints and have found them to clean up well, and stack very nicely.
Happy to received feedback on how they worked for you.
The side-wall holes (besides reducing material) turn out to be nice for making them easier to handle with your fingers as well.
NB: Despite the visual similarity, the Spy vs Spy vibe is purely coincidental. :)
paintConeStackTab_v1.stl | 80.8KB |