some good slogans for the day:
- Love animals, don't eat them
- Are you really that hungry?
- Your dinner had a horrible life
- Get hip. Go veg.
- Get wise to the environmental disaster of meat
- Beef = Global warming
- Did you already eat that recalled meat?
- E. coli. It's what's for dinner
- The cows are mad as hell
- Chemotherapy with that meat-burger, sir?
- Eat your vegetables

here's one I like to mutter once in a while after hearing some author say it on The Daily Show back in April or so:
tortured flesh