I heard someone talk about a drone that would fly around and say nigger really loud... How about a stuffed bird in a tree with a wireless speaker that you can subtly yell out fuck the jews... or niggee nigger nigger I would think there would be a way to do this with out being traced... A real pigeon with a small speaker would be funny. Wild cat would work too that lives in a urban city.. catch it put a speaker on a collar with a good batter record red pulled messages