When little Mikaman was in kindergarten, his favorite player was Mariner's Randy Johnson. He had a little pair of white baseball pants, and I took an old t shirt and painted it to look like a Mariners shirt with Johnson on the back.
We got a kids size Mariners hat and I bought some long, stringy,blonde dolls hair and sewed it into the back of the hat so it looked like there was hair coming out of it.
He was so pleased - he looked just like him (sort of). Off to school he went, and when he got there some 3rd grade girl (who obviously didn't know anything about baseball) told him he looked like a girl. That didn't sit so well, but he proudly wore his Randy hat all day long. His teacher, a baseball maniac, loved it!