The one below also had a Go-Pro video camera attached and weather recording instruments.
Here goes the first one:
Here are two in one shot:
One did not have enough helium and launched only into the trees.
This is the one with the instruments.
This last one had three balloons attached to the one box.
The link below has a wonderful video of the flight made by the Go-Pro. It is 14 minutes long, but sit back, relax and enjoy the ride. You will be glad you came along for this amazing story.