Thanks guys! There really isn't much to it really, the pics say it all. I used a 1/4 horse electric fan motor with a 2" drive pulley and a 5" pulley on the drive spindle. Motor turns on, turns the drive spindle, which in turn grabs the tub and rotates it. RPMs seem about right at this combination. When I get some time and finish it I'll try to post a video of it in action.
What would you charge to build a guy one?