Sometimes, I think I'd love an egg-launching device mounted to my bars. It would have to throw them a good 50' level, used for only the most special of occassions - preferably, of course, when I could get away with it.
It would be hard to keep the eggs intact unless they were under top-to-bottom compression and didn't have any chance of getting hit otherwise. Then, I might end up with egg all over my face.