The little suction cups are great for holding rulers in place. On Saturday I saw rubbery kitchen floor mats that are great for muffling sound (I'm in an apartment) and to keep machines like sergers from "walking". I think cutting a little chunk off might be good to keep pedals in place too. They had those flashlights that strap onto your head on sale, too. Not only are they wonderful in a black out, but they sure help if you drop a pin or needle on the floor and have to crawl around to find it. For $2 how can you go wrong? Have fun!