I went crazy and designed quite a few 'stations'. Some of them I actually listen to.
Some examples:
"Frank's Place" - I entered only two artists - Frank Zappa and Captain Beefheart. Interesting results.
"Adrenaline" - Entered in Pantera, Megadeth and Slayer. Wanted the hardest, fastest metal station ever.
"Anti-Authority" - old-school punk rock (none of that Blink 182 shit)
"Beach Party" - all surf music
"Doo-Wah" - All doo-wop
"Yacht Rock" - Lots of crappy soft yuppie rock from Michael McDonald, Kenny Loggins, etc.
"Pass The Jam" - Jam bands
"Swizzle Stick" - lounge music
"UK Swingin'" - This was a weird one. Mostly 60s pop, British invasion, stuff like Lulu and Petula Clark, etc. Wanted to replicate a 60s-era AM top 40 station, and give it a real British feel. Pretty neat.
"Maverick" - alt-country, classic country, countrified rock.
And others. I have a list on my site, right-hand column:
http://ltradio.blogspot.com/or here:
http://www.pandora.com/people/ltradiomail I even got silly and designed little logos for each of them (I was bored).
I like how Pandora throws in album tracks, long-forgotten oldies and some interesting obscurities. I just wish that it would allow choices based on decades, among other things. And they do mess up from time to time. On my lounge station they threw in a heavy metal band from Spain, for some strange reason.