I've made a few. I did one once that had my (now defunct) wrestling blog written on it, though it was only on TV for a second. My sister also brought a sign that said "I Paid to see Awesome Truth", since it was during a period where they were off TV and she was upset about not seeing Miz live.
I made a lot of signs as a kid, but I don't remember most of them specifically. I think one was a close-up of Undertaker's face, and I know I did a lot of them with puns back then.