Senior Ideas

At my school, it is a huge tradition that every senior decorates overalls. Except they almost all look the same, or similar. They say the name of our school on one leg and then the mascot on the other, and then maybe on the back they say the year that you graduate and then seniors. But I want to do something different and creative, maybe with a theme or something. Do you have any ideas? (I play soccer too, so I want something with soccer on there)