Dear Protesters...

It's apparent that you need to think big, as in big banners. Those tiny, individual signs are not very effective at sending a clear, readable message to The Emperor and his supporters. As such, here is a suggestion:

I've got a dozen of them, all with simple, clear messages, and the point here is that you need clarity, readability, and simplicity to hit the message home.

The Emperor will never again make the mistake of assuming that you're supporters cheering him on. When he watches cable news, he won't be able to avoid the messages you're sending to him.