Re: Forcefield to full power save the floor!
Take a small piece of scrap plywood, 1/2 inch or so should be good. Measure and mark lines about an inch from all four sides and then ceramic tile from the inside out to the lines you made. Fasten a piece of scrap trim that rises about an inch all around the perimeter of the piece. Set your hookah up in the middle of the piece. If a coal should roll off it will land on the tile (non-flammable) and if it rolls further it will be stopped by the trim work around the edge. And, you can use materials that will compliment the decor of the room. Smoke happy.
Al Fakher Large Solid and a bowl of DM . . . life is good!