I do my clippies "upside down". I like the way it lies on the head better. I also prefer the flat side on top. It is opposite to how 95% of people do their's. I've sold quite a few though, and nobody has ever complained.
They are on my etsy site: Etsy :: HazelsZippyClippies :: Hazel's Zippy Clippies
I don't have many pictures with models yet though.