these little pyramids can be printed in vase mode. there are little tabs on one side that can be pushed into cardboard, to hold them in place.

if you don't want the cleat to hold the cardboard just use one of the other sides.

They are to hold your part off the paint surface to paint does not wick between the part and the surface.

Great thing to print as a purge object. Reducing the volume waisted in a purge tower. When used as a purge object it can't be in vase mode.  Because the object is used for purge you might go the other direction and set the fill as 100% for this object. Because the color of the paint stand off does not matter, it can be any mix of color. Giving you the opportunity to reuse the poop, minimizing waste.