What are these mini figures? They are Amy Rose & Eggman in 'chibi' style. Each one is shown standing on a thick star shape. Notice that they also have a cord or drawstring of some kind on the back. These are mint in the package here, which just has a standing Sonic on the back.

There's no label or anything on the package to give you a clue of what these are. What needs both a base AND a string? Write in if you know for credit.