One of the neat moments I had at Oshkosh this year was meeting Noah Forden of Rhode Island. As it so happened, he was camping just a short way from us in the homebuilt-camping section.
Noah is a ballooner and also owns an RV-7. But a big balloon doesn't fit in an RV, so he built a smaller balloon.
So you get cool views like this (pictures courtesy of Noah):
All from this: