I just use a pet carrier. 6 hens but only 4 or 5 eggs a day. Just sit it under the roost or where ever. They seem to find it.
I have seen two in it at the same time and watch many arguments on who's turn it is.
@7chicks I like your Barred Rocks. I'm trying to cross one with a buff orpington. See if I can get a little color in the Barred.