Well maybe not. I am lacking in advice to contribute, as I have been helped, but here goes. I ran across this 'Made For Tv' silicone liner and it might work if anyone wants to search for. Its called Pyramid Pan. You can see the design and it has another side too. I hoped a boolet, especially a small one, would be nicely held, upright and maybe nose down. That may work for some but not with the few boolets I tried. Laying them down might work great thou and hold them from rolling with a little air space too. It's 16"x11" and could be cut.