Where can I get me some of these?

On the drive up to PA today, I noticed some very interesting bumper stickers affixed to passing cars. One said, "Bush made me a Democrat", while another said, "01.20.09—Bush's last day!" I think I need to get myself some of those stickers and slap them onto my bumper! Right next to my DC Baseball 2005 sticker (which is a tad out of date).