I don't think I have seen these before and I know I haven't heard the term "Push n Go". I have heard of the term "Pull n Go but not Push or these the kind that you have to "Push" them several times to "Wind Up" the power before letting them Go on the Floor? They are pretty cute, how big are they?
EDIT:
Oh now I see and there are quite a lot of these on Ebay but probably not what you are looking for.
EDIT:
Oh now I see and there are quite a lot of these on Ebay but probably not what you are looking for.