Simple hack: buy a cheap patio paver stone at Lowes, Home Depot, or your local patio/garden store. A 12x12x1.5 paver should run you $2 and be more than enough protection for any heat-vulnerable surface. Even an expensive and more decorative paver should only run you less than $5.
Dude, your discussion ….you were sitting at a table! Expanded wire mesh, would be a fine table top to use it on, definitely not on wood or plastic top tho. At least you admitted you goofed up! Ha ha