If you search this site, you will find the thread on my egg drop last year.
At first the church wanted me to drop the eggs inside a bowl-shaped stadium that had a precarious entry point and after one practice flight a week before the event, I declined.
Instead, they switched to a nearby field that was roughly 75 yards by 50 yards.
We used an R44 and I carried a single person in the pilot side back seat (he weighed less than 160) and we removed both right side doors. The eggs were packaged in plastic bags of 250 each and we carried about 15 or so bags per drop.
We would fly into the area (I insisted on a crowd-free entry and exit lane to fly in and out so as to avoid overflying the spectators) and I would get down to about a ten to twenty foot hover over the field and then allow the guy in back to open the plastic bags and drop the eggs. I made certain that as the bags were emptied the guy dropping the eggs placed the empty plastic bags underneath his shirt so they wouldn't have any chance of blowing out and he only dropped the eggs from the right side of the helicopter so as to lessen the chance of eggs flying into the tail rotor.
As we entered the field I had the guy in back assist me in verbally accounting for all wires and any other obstacles that could be of danger. That helped our situational awareness tremendously.
We had three or four different child age groups to drop eggs for so we would land nearby, load up with eggs (we could safely pack 3,000 eggs into the helicopter) and then fly into the drop zone and do our thing. The only other trick was to be careful of packing eggs in the empty front seat and floor area (next to the pilot). It was difficult for the guy in back to reach over the front seat and into the floor area so a few times I would have to sort of lean over and grab bags of eggs from the front floor and pass them back to him. That was a bit tricky, but the fact that I'm very tall aided me a lot. An average height pilot probably shouldn't attempt to reach for stuff in the front passenger floor area while he's hovering.
Overall, we had a great time and the crowd was incredible for a relatively small town. They had nearly ten thousand people show up! Of course, since Easter is in early spring, you have to plan for wind, but having the drop in the morning was a big help in that matter. Our day was great and if asked, I'd do it again.
I didn't quite understand why a church needed the helicopter but after pondering it and actually participating, I realized why: the kids love the egg hunt and the helicopter attracts a big crowd of curious adults.
This all happened at a local civic center and it had the GM of the center on pins and needles, but thanks to careful planning it went off without a hitch.
Although it was a success, I've yet to hear if the church plans to do it again this year.
Lastly, this happened in class Charlie airspace so we had to keep the tower informed as to our flights. We were less than two miles from the airport.