custome seats

hey guys, im pretty new to the world of motorized bicycling and i have seen some people with custom seats on their schwinn occ bikes. some of them look like real motorcycle seats and i was wondering how to put them on and where to find some nice looking ones. i just got a schwinn occ stealth bike last month and i then heard about the idea of putting a motor in the bike from a fried of mine, and i figured if im gonna put the motor in i might as well go and try to make it look as cool as possible=P. if you have any pictures or could put me in the right direction with the seating i would really appreciate it