They wouldn't do it in 40-50 mph winds, but the most unusual use of a chopper I've seen was to put caps on top of utility poles. I heard a chopper, went out to look, as was amazed to see a guy in a harness swinging about 20' below the chopper. They flew up to a utility pole, hovered and corrected to stop the guy from swinging, and he reached out and put a cone, like a dunce cap, on the top of the pole. A few quick pops with something like a power stapler, and they moved on to the next one, about 160' away. There was a supply of the caps on a hook hanging from the installer. It was incredible to watch -- they didn't waste any time, and they hustled from one pole to the next. I'd say they spent no more than 30 seconds at each pole.
The second neatest use of a chopper I've seen goes back several years, before electronic imaging of checks took hold. A check processing company near Miami used a chopper to pick up checks from participating banks in order to get them to processing faster. Each bank had a hook on the roof. Around 3:30 PM, an employee went out on the roof and hung a bag of checks from the hook. On schedule, a chopper swooped down over the bank, and a helper used another hook to snag the bag and pull it into the chopper. The banks where I watched it taking place are about 100 miles from the processing center; I assume they repeated the action many, many times on their flight South. It reminded me of the old pictures of trains snagging mailbags from hooks without stopping at the station.