Coaster Drying Pointed Plate

So I make coasters on my laser cutter and I hand coat them with wipe on polyester but I am always looking for someplace I can lay them down that they won't just stick to as the coating dries so I made these.

100mm x 100mm with lots of points on them (watch it they are sharp). I would not want to step on these in bare feet but that's the point, the tiny contact area should not leave any marks on the drying surface. I just use whatever filament I have in excess and this time it was natural PLA.