I'm not saying they look "wrong", but to say that they are amusing to look at is an understatement. that is to say that i'm glad people make them because at least in theory they have a practical function (not going to get int the semantics of that.) but they are also quite funny looking to me. (as in funny ha-ha - not as in funny as in a guy with a leg injury might be said to walk "funny")
That being said I'm actually working on one right now.
edit: *trying* to work on one, that is.