was thinking about the school club set up, you could use the janitor helper as part of a public service club. after all servicing the public will make the world a better place. that way you will not have to pay the "volunteers". an art club welcoming artists and models, could also accept canvases as well depending on your opinion on body paint. if your to ticklish there could be straps to put your hands and feet through, to shy, how about a blindfold. and wouldnt fingerpaint day be quite a surprise.