NRA Protest poster ideas????

I am planning on joining the protests that are being held on Friday outside of the NRA Convention. So I really want to make a “meme protest poster” (not sure if there is better way of saying that) using Ralph’s “I am in danger” from The Simpsons. The caption I’d like to use is “People protesting outside of a GUN CONVENTION.” I shared this idea with my sister and she said it fell flat. Is there anyone out there with a better and funnier idea? PLEASE HELP!

P.S. I will give credit to the original poster on the physical poster and an update with pictures.