Check here-- http://www.rubber-power.com/how-to-make-a-propeller.htm

The blade profile is available to download from (Taiwanese site)-- http://www.easyairplanes.com/board/viewthread.php?tid=45&pid=459&page=1&extra=page%3D1#pid459

Great technique actually !!!!! . Making Propellers From Coca Cola Cans. Great Website.
Now i am not going to throw cans I can make propellers from them. thanks Anjan Babu

There are a lot of ways you can use aluminium and steel cans.
I made a kind of jet engine out of coke cans, more of an afterburner, really.

super good

Is that a car... looks like a dragster

Yes, a cheepo homemade electric dragster.

I made the same but with plastic cups to reduce weight and also it having memory effect that if it bends, it again can take it's shape. The angle of axis is roughly 15^O. In perifery, 15^O = 1/24th. So just offset amount can be measured easily (in top).
Moreover, for it's softness, automatic pitch adjustment just works nice.