I transmorgrified a plastic playhouse into a "grow out" coop for four chicks, now 11 weeks old. It's not in this picture, but I put a temporary poultry fence up INSIDE the run, so the other chickens can see, meet, bump chests, etc. for a few weeks before I take down the temp fence and let them merge with the whole flock.
Just added hardware cloth, put it up on a pallet on top of up-ended concrete blocks, added a roost, a Booda cat litter box for a "nest box" (which they don't use), put in pine shavings,
hung a nipple waterer, set up a feeder,
and kept the chicks in there for a week before letting them out into their own small penned area inside the run.
Spent far less than I would have on an Eglu, and I think it's lots cuter!

Just added hardware cloth, put it up on a pallet on top of up-ended concrete blocks, added a roost, a Booda cat litter box for a "nest box" (which they don't use), put in pine shavings,

hung a nipple waterer, set up a feeder,

and kept the chicks in there for a week before letting them out into their own small penned area inside the run.
Spent far less than I would have on an Eglu, and I think it's lots cuter!