I really dig unique RC models, and Kyosho's RC Surfer 3 definitely fits that description. While it looks just like a model surfboard--right down to the handsome dude riding on top--it is also part powerboat. It can ride waves at the beach or make waves of its own further inland.
A Powered Surfboard
RC surfboards are not a new thing. As the name suggests, the RC Surfer 3 ($230) is Kyosho's third variation on the theme. The basic design is a carryover from earlier models, but there are numerous equipment and cosmetic updates that make the most recent version more contemporary.
The surfboard itself is comprised of a molded plastic hull. A waterproof servo actuates a rudder at the tail of the board. This unique rudder resembles an inverted "U" shape. I'm not sure if the intent of this shape is to allow the rudder to double as a kickstand when RC Surfer is on land, but that functionality is there.
The onboard electronics are an interesting mixture of old and new technology. Propulsion is provided by an old-school brushed can motor with a direct-drive link to the prop via a solid shaft in a stuffing tube. It is undeniably low-tech, but also dead simple and reliable.
A modern ESC is provided for throttle control. Like the steering servo, this device is also waterproof. The ESC has two physical jumpers that are used to enable/disable reverse capability and to choose low-voltage cut-off for NiMH or LiPo batteries.