I have scrounged up enough stuff for 5 nest boxes. One is a large popcorn tin that I cut a hole in the side and rolled the edges so it won't be sharp. If anyone tries this idea, use gloves, heavy nippers and pliars. That stuff is SHARP when you cut it. Fortunately, I got through the process with no blood.
One is an empty gallon jug .Checoukan says they are big enough for my little old english, so they ought to be big enough for the seramas, too. I cut a hole in the side and will zip tie it in the pen so it doesn't move around. It is not as sturdy as I would like, but it will do for now.
Two of them are ice cream buckets that I am going to zip tie the open ends together, cut a hole in the side and lay it on it side and then zip tie it in the pen so it stays put. Wish me luck with that one. We will see how it goes.
One is a aluminum roasting pan that I bought at an auction for a buck. I was going to use it in the kitchen, but the inside of it is so messed up I decided I didn't want to cook with it. It will just set in there. It will be completely open on the top. I like having my nest boxes "enclosed" and they will probably roost on the edge so it may get poopy, but it will work temporarily.
I didn't want to use open boxes, but I may have to use some until I can scrounge or build enough for all the pens. I still need several more.
Hawkeye, I don't know about using the tins outside. I suppose it might work, but I would think it would work better inside just because of the wind and all. You could always give it a try.
Danz-That's a lot of chicks you are hatching! I want to start hatching soon, but I just don't have the best facilities for keeping chicks warm through the worst weather of the winter. We have lost power so many times in the past I worry about them freezing to death outside in the shop if we would loose power some night. I sure can't raise them in the house, either. I usually keep them inside for a few days and then they go out. I want to build some nicer brooders, but now I am wondering if I should do that if we might be moving in a year. Stuff like that is so hard to move and we have so much stuff already!