if just for a few, go to willy quality and pupils are consistent. if you are looking for bulk, and on wires, try Tohickon glass eyes sure you can find by searching pupils are not pinpoint, but with bulk....
My opinion: You'd be further ahead caving and painting wood eyes than to install a low quality eye. It just doesn't make sense to me to spend the money on tools and materials, then the time it takes to carve a cork or wood bird, and then try and save 2 dollars on a pair of eyes. Maybe it's just a pet peeve of mine, but it BUGS me. (pun intended)