Not that I have ever used one, but this seems the sort of reason for getting an English wheel for making fenders........
http://www.youtube.com/watch?v=St0hb6vjfTM
Perhaps BoB can add one to his collection of toys for Christmas......... I wonder if starting with one of the fenders from Princess Auto would speed up the process........
Keep up the good work....... I just tarped up the Iltis in the back... no more work on it until the spring time......
Cheers!
Stuart