Burger King

Burger King is a fast-food franchise founded 1953. The franchise had, at one point, owned the rights of fast-food toys for their Burger King Kid's Club based on the Sonic the Hedgehog series when Sonic Adventure was released in 1999 in the United States. However, it was cancelled for unknown reasons. At least ten toys were going to be produced for the Burger King Kid's Club, but were never made. However, auctions on eBay shows concept artwork of each figure.

Figures
The following consists of figures that were originally going to be produced as toys for the Burger King Kid's Club.

Rip Roaring Robotnik
Rip Roaring Robotnik is a figure consisting of Dr. Eggman (then known as "Dr. Robotnik," despite the name being changed to "Dr. Eggman" during the course of Sonic Adventure) in his Egg Mobile and a Sonic the Hedgehog figure. According to the concept artwork, the Eggman figure would have been spinnable, and a light-up gimmick would have been used for the figure. The user could have spin the figure fast enough to hit the Sonic figure. The concept artwork shows that the figures had no articulation besides Eggman's arms, which can be debatable if so.

Somersaultin’ Snowboardin’ Sonic
Somersaultin’ Snowboardin’ Sonic is a figure consisting of Sonic the Hedgehog on a skateboard (it should be noted that this figure is based off of concept artwork of Sonic on a skateboard released during the release of Sonic Adventure, seen here). The figure would have been able to move thanks to the wheels on the skateboard. Despite being a skateboard, the name of the figure implies it was based off of the snowboard scene from IceCap level.