Turns out, I was just being unoriginal.
When I heard that Tony Snow was being considered for the Press Secretary job, I thought, "haha, he'll literally be doing a Snow job..." and was all amused at my wit.
I realize that even if it were completely original, it wouldn't actually be all that funny. But, still, I thought I'd say it to someone. Who then informed me that that particular pun had been done. Had been done many times.