Here is a fun skateboard that is propelled by skiing-like movement to provide you a fun ride outside. You will just have to put your feet on either side of the back wheel, and lean from one side to another to go forward. To stop, use the integrated handle and place your foot on the ground.
The Slalom Skateboard has an aerodynamic ABS polymer frame and a 20″ diameter pneumatic back tire with high-grade bicycle tire treads for street or sidewalk action. The skateboard is easy to transport and supports riders up to 165 lbs. The above video shows how it works.