I recently used an over sized dome mold to make a molded chocolate. The question was, is it a jumbo molded chocolate or is it a candy bar? It is 2.5 inches in diameter, so I think that it qualifies as too big for a traditional individual piece. On the other hand, a chocolate bar should have a "bar" shape. Where would this fit in? I would place it in the bar category, not for its shape but for its size. And it can very well be eaten as a bar.
This particular piece is cast in milk chocolate, filled with an Oatmeal Stout ganache and salted peanut praline.