Work holiday party ideas???

Work holiday party ideas???
I am helping plan our work Holiday Party and I would like to have some games and/or entertainment and prizes! So far we have: Karaoke, a White Elephant gift exchange, and a slidshow presentation from the past year. (I work at a car dealership with people ranging in age from 19 to 60-something and I just want some prize ideas of stuff everyone could like) :) Thanks a bunch for any help!!!!