I've only ever seen those in Texas. Always made me laugh my ass off that people actually bought them.

Last easter, me and my girlfriend was up for a short hike around this frozen lake on a sunny day. There was this guy there who asked us if we believed in Jesus now that it was easter and all. I said "no" and just kept on walking because I don't like it when strangers want to discuss religion with me .. but unfortunately, we ran into him again and my girlfriend replied "No, we believe science and evolution" or something a bit naive along those lines. Of course, the guy stayed with us for about 30 minutes after that, turning what was supposed to be a romantic walk into a popular science lecture on my part and him being bewildered and trying to talk about Jesus.

It's a scam in that he disguised a simple question as a way to lure people into talking with him so he could blabber on for half an hour and my girlfriend fell for it. Damnit!