After printing the Push Block Light by Trobinou, I figured I would print my own grip material from TPU instead of purchasing shelf liner or similar material.

I printed with black 95A TPU on an Ender 3 Pro, sliced to .20mm using stock Cura 5.1 settings and it took less than one hour. I attached it to the bottom with super-glue. I tested it on my jointer and it provided more grip than my Bench Dog pushblocks.