I have a couple of good ones.
1) I lived in North Dakota, I would get into those old hay bails and dig the center out. I would dig deep enough, so I could place a 5 gallon bucket with a swivel chair inside and only my head was visible in the hay bail. I could see in all directions and swivel into position. It was like shooting from a bench. Now these were those large round hay bales. Yes I did get permission from the farmers first.
. I shot quit a few deer this way.
2) I hunted from an old abandoned car with no wheels just sitting on the ground. There were no windows, but the seats were still in there. I would put a tarp down over the seats, because they were dry rotted. I got one deer from that old car. :-D