I have NO plans to raise fighting chickens (I have heavy dual-purpose breeds), but I am wondering where to find the plastic coop/capsules that you see all the fighting roosters staked to in people's yards. They must be cheap and plentiful, but I cannot find them (or else I don't know what they're called so my searches aren't working). I keep coming up with Eglu's which are not what I have in mind. We're building a chicken tractor that I will keep a couple of hens in on nice days to let them get some grass and to get my lawn fertilized, and I thought one of these capsules would be perfect to protect the feed and let the chickens get some shade. Any ideas?