Sincerely, I think that all that photographic tupperware stuff is of really limited use. A good bounce card will give you equal or superior results for pennies. Gary Fong stuff is tremendously over priced... now that I know how much it costs to manufacture (pennies!).
This Lightscoop looks like nothing more than a piece of paper attached to the flash (something I do a lot when I shooting weddings and parties). The results I get look identical to the example picture, but it only cost me $1 for a sheet of paper and some Velcro to attach it.