My son has discovered that he has something he can play with attachd to him. He is only 2 years old and still in diapers - not that it deters him in any way. I went into his room yesterday to wake him up so that we could go to the babysitters to find that he had been reaching into his poopy diaper. He had poop on his hands, feet and belly - like he was trying to wipe it off. Needless to say he got an impromptu shower before we could go anywhere.
Then this morning in the tub he looked at me and said, "Mom, I hold my peepee." Sure enough, he had it in his hand. I know it's normal for a boy to do this, but I just didn't think it would start so soon!