I just bought a big mirror at the market for £3 (£3!) and one of my hens put her beak on the mirror and slid it from one side of the mirror to another, trying to figure out what was going on.
I hang up cabbages but they don't touch them.
Also, given that they demolish grass at the rate that they do, would they like some turf if I can get hold of some that someone is throwing out?
I have put their food in bird feeders. I am assuming this will be safe from rats.