Been running my Marga using a window winder motor for a few years now. Always been meaning to post a pic. Finally went one better and took a small vid:
Bought it from Oatley electronics, (Toyota) and runs from an old PC power supply. Only turns at about 80RPM but works fine. It's a nice grunty little motor.
Been meaning to make a more permanent stand for it but this works pretty well and sets up in a few mins.
Richard
PS - is there a way of embedding a youtube vid ?? Did a search but can't find anything ???