Gatlinburg is a pretty cool place. It's not a major theme park mind you but there's plenty to do considering both Dollywood and Pigeon Forge (has a nice water park) are very close by. My personal favorite are the Go-Kart tracks. There's bunji jumping, rock climbing, fishing, camping, 4-Wheeling, plus lots of music (Gospel, Country, Rock, Bluegrass, Celtic, or whatever floats your boat...) and even ice skating for those folks from the extreme north.
Also we could always adopt a "Survivor" theme where we can vote people if we have to. -OR- We could do it the old fashioned way and let NoahsDad break out the 12 guage shotgun. *lol*