*Pippin would be a waiter, a clumsy one. :P
*Saruman, as I've already seen
Eomer of the Rohirrim also thougt, would be elected as president, of course using some his mindcontrol.
*Gandalf would probably be a partyfixer. Setting up the music and fireworks especially.
*Legolas, some kind of model for really thight pants.
*Witchking, selling tupperware by doorknocking. (Maybe not a good career cause of his outfit. :P But anyway, I would laugh if he came to my door
, or not. :P)