I hate to ask this but we are doing something called pimp my boat and live out in the country, I thought it would be cute to do a country pimp, for which I need a life size cow.  I haven't done anything this large before and have never worked with chicken wire, how do I shape the chicken wire into cow form and is there any website that might be able to give me directions?

The parade is Memorial Day....so I need to get started.

Any help would be appreciated.
Thanks