Crane
The new simple machine set has a moving floor.
Perhaps it could be for a Halloween fashion show.
http://www.marshall.edu/LEGO/VOB1112/2011-10-13VoB5/2011-10-13VoB5.html
Make a movie.
The Yellow set has a merry go round
that can be made with the white sets.
Also the fan can be made.
Grabber
Scale
Egg Beaters
AIMS governor
Motorized
