Jackson's Sensory Disorder Problem

I have been taking Jackson to the Y for a little art class. Basically to give myself some incentive to go work out. They just read a little story and then do a craft project to go with it. He likes gluing and cutting, but I found that he does NOT like finger painting or anything that gets his fingers messy. It ends up all over him and me. So I decided to work on this issue at home and I gave him a cookie sheet with shaving cream on it and some hot wheels cars to drive through it. He literally freaked out!! He was crying hysterically and yelling "I dooty!" He did not like being messy. I showed him how to clap his hands together and make "snow" so that kept his interest for a while, but he still wasn't happy. Finally I stripped him down and put him in the bathtub to clean him up. He was worried about his trucks, so I gave them to him and he was happy as a clam washing them off in the water. Oh well, at least he likes to be clean -- we will work more on the texture issues later.