i've just recently had an idea of a ride on lawnmower with some sort of jet engine attatched, and making a mad professor to go with it, you can steal that idea if you want.
i've never tried that either, i just scab the meshes that come with modo when i need a person. i started on the lawnmower before couldn't help myself, prob the best detaild model so far ive made.
my tutorial is really hard to follow according to alot of people. whats the window for, it seems pretty insane with that amount of poly's. i'm just starting to build the forn of my mower