Here is a list of some signage from the San Fran demo, per The Progressive's website today:

Home-made signs far outnumbered the pre-fab.

Here were some of my favorites: "Dude, Where's My War?" (with a goofy depiction of Bush on the poster)

"Stop Mad Cowboy Disease"

"W is for Warmonger"

"Axis of Evil: Exxon/Mobil"

"No War for SUVs" (the anti-SUV sentiment was widespread, and protesters left signs on SUVs that they passed along the route)

"Solar Not Murder"

"Help! I'm Dying for Oil"

"The Price of Blood: $32 a gallon"

"Fighting for Peace is Like Fucking for Virginity"

"Brains Not Bombs"

"Bongs Not Bombs"

"Unfuck the World"

"We Refuse to Be Enemies"