Here's a few from PA:

Divine/Biblical
Paradise, Bethlehem, Ephrata, Temple, Zionsville, Christiana, New Jerusalem

Interesting
Obelisk, Tobyhanna, Birdsboro, Bally, Gap, Pleasantville, Kleinfeltersville

Then, of course, there's the infamous Intercourse already mentioned in the Around Towns thread. If you go to gift shops in Lancaster county, you can find caps, shirts, etc. with the logo "I love Intercourse" printed on them in large letters. At the bottom, in tiny type, is printed (PA).

There is also a tiny town called Virginville about five miles from where I live.