This is a foldable stand for a standard wide mouth quart size mason jar as these are sold in the USA. The angle is just enough for the water to drain. The folded size is 6"x4"x3/8".
I decided to design a foldable one after printing some that I found because I didn't like that all of the ones that I have tired are hard to store and take too much space.
This stand requires no external parts. Both sides of the central connecting section are the same, so there should be only one functional way to assemble this. Please reference the folded image. You should be able to push most pins with your hands. While developing, I had some pins that I had to tap slightly to get them going. The intent was to have parts move with a slight friction for stability. I have only printed this in PLA and PLA Tough+ so far with 0.2mm layer height.