i know! get one of those powerball things i can't remember the name, but i'll find a pic oh, i was right pic: apparently, chiropractors say they're good for rehab of muscles when they're recovering invest in one
get summat to stop them sliding (Y) see if you can get a rubber tile or sheet of some kind, and cut squares out and put them on the corners of the pallets.. The vid was certainly fun to watch lol