You can buy painter pyramids

 

Or you can make your own.   Waiting to try these out.   Some scrap melamine MDF and a few biscuits

 

 

Keeps the project off the table and allows staining or finishing without sticking to the table top or paper.  If the back side of something needs finishes and might not be super critical, you can do both sides at once.  For example, put these in the hinge holes and pull/knob holes after you've put finish on the back, then do the front and edges.

Cool idea!

 

I've made some by shooting finish nails thru a piece of plywood and resting the pieces on the nail points. Also made pyramids from 1.5" x 1.5" stock. Set the chop saw at 45° and cut a point on the stock the cut it off square about 2" long.

or just use  kids jacks...

Take your old bandsaw blades and cut into 10 to 15 inch sections and bend into a a v shape or whatever is needed. Works great. Also have the old drywall screws in a board.

Keith I spray lots of frames and I need the things off the table so I can get a sprayer in there. These dowels if I don't want the pointed end I can flip them upside down for when I spray heavier things. Those things you went to the trouble of making seems like sitting on the flat table is about the same.

 

Just thinking out loud!