The Kriss Kross razor had a head that could be set at an angle or set "straight". I don't really know of any others.
Ooh! I want one
If the head were slanted, it would shave differently on the left side than on the right. I would think you could get the same result by doing a Gillette slide--but I wouldn't want to try it.
Hope I don't take over the thread, but in reference to this I know that the gillette slide (or GEM slide as I've heard it originally was) is popular with DE usage, but is it not so much with SE? It seems like it would be the same thing, but xxvaleria's comment makes me wonder. Are you saying you wouldn't want to try that razor or wouldn't want to try the GEM slide with an SE?
I'm not following this at all. Why would a slanted head make it shave differently from the left to the right?
Because the slant on the right side of your face would be the opposite direction on the left side of your face, e.g. \ and /.