No, I'm not running a contest myself, but a few years back they had one at my job for the workers' kids. I was asked to make a drawing for the kids to color, and it needed to pertain to the United Way. Originally the hand was severed with visible bones and muscle, but that version was considered tasteless by the big dogs, so this is what my final version looked like.
If you aren't familiar with the United Way, the original logo is in the lower right hand corner of this drawing. It's sideways but you can get the basic idea.