I saw one of those on a bubba truck (dually diesel) going home yesterday evening. There are a lot of anti 0 bummer stickers in the Austin area. I thought I saw one 0 bummer sticker last week, but it turned out to be "NOT OBAMA in 2012" instead.
I overheard an older man say “Within 6 months, anyone with an 0bama bumper sticker on his car is going to be asking for an ass kicking”.
Everyone who heard him laughed and agreed.