I happened upon this site recently:
http://www.morphsuits.co.uk/default.asp
Now as full-body lycra suits go, they're pretty standard, but people seem to have accepted these suits as 'quirky' but owning one would not be completely out of the ordinary.
I firmly believe we have found the answer to all our issues concerning the ownership of inflation suits. I've yet to buy one myself, but when I do, I'll let you all know how they fare.
They used to be called Zentai suits until some enterprising marketer decided to call them Morph Suits and charge more for them.