A while ago I read somewhere on there that people were using these plastic lidded ( think) boxes that they found somewhere- like Target, Joann's, Ikea or something..... I was trying to find a few for my girls (who still haven't started laying yet). The boxes had a large u shaped opening in the front almost like a stackable utility bin. Any help or other suggestions would greatly be appreciated. Most of my girls are bantams, but I have two reg. sized partridge Cochins. The nesting boxes that my friend's father built onto the side of my coop are way too small for them- and they leak!