We will be doing this again. The "you can do eet" sign was a HUGE hit amongst the riders last year so I considered doing that one again (sorta like starting a tradition), but if I can come up with something better, I'll use that instead. My bff suggested "Honk if you hate Cancer" (it's a ride that raises money for cancer research), but obviously they're on bicycles and don't have horns.
Should I have them make animal noises? "Howl if you hate cancer?" Something else? Any awesome suggestions from this creative group?