this. A rain gutter regatta stand available to download for free on thingiverse.
In truth those pictures are hue shifted because I printed them for my sons in red, because I have a lot of red. So if they look funny, that's why. You probably wouldn't have noticed if I hadn't said anything.
Another truth, I considered trying to put this design up for sale too, but I managed to talk myself out of it and settle for a little subtle branding instead.
Want to learn to make something like this? I'll teach you.