Is there a chocolate bar called star bar?

There is no widely known chocolate bar called "Star Bar". It's possible there might be a local or regional brand with that name, but it's not a major brand that you'd find in most stores.

Could you be thinking of a different chocolate bar with a similar name? Maybe:

* Starburst: This is a candy, not a chocolate bar.

* Snickers: A popular chocolate bar with a peanut and caramel filling.

* Mars Bar: Another well-known chocolate bar with nougat and caramel.

If you remember any other details about the chocolate bar, like its shape, packaging, or filling, I might be able to help you figure out what it is.