can anybody give me any ideas on how to build a cow for hunting geese

A cow for hunting geese?? I'd prefer a good dog anyday, but if you insist, first you start with a bull.......
Seriously though, do you mean a cow blind??

if your talking about what i assume your are, which is a cow cutout to hide behind when stalking light geese then just get a big peice of cardboard or paneling and pretend your in art class, maybe find a pic on the internet of a cow and paint your board similar. My dad suggested to me the use of gateway computer boxes

yes i was talking about the cow blinds

Shoot the farmers cow and then hold it up as a bovine "shield".

you can carry it bud...

Sounds like a "heavy duty" blind

Yup, works like a charm...

Get some coroplast, it is used to make outdoor signs, it is light-weight, waterproof, comes in sheets 24"x36" use 4 or 6mm thickness. Draw out your pattern on the sheets, cut them out & attach them to a frame. Cut out some holes to see through and attach some posts to the legs so you can stick it in th ground, and a couple of handles to the frame so you can carry the cow. Paint the whole thing to match a cow. Just like making a silo.
Hope that helps.

you know those 2 peice cow suits where one persons the head and ones the rear end.....try talkin your huntin buddy into that.