Darin Selby, 47, runs along the Venice bike path pulling his home-made human-powered "Dream Catcher Mobile" on Sunday, December 23, 2007.   With hardly any effort, Selby can pull up to 1000 ponds accomplished via the human-powered rolling lever! In operating the Dream Catcher Mobile, Selby first pulls down a long, padded lever - and in the process uses his own body weight as an advantage.