Skateboarding has been around for over thirty years. Longboards are skateboards that are bigger and react more like a surfboard on the road. These are both great exercise and give you an awesome lower body workout. If you want to add an upper body workout, now there is Land Paddling.
Kahuna Creations has invented the Big Stick, which allows you to paddle along the street on your longboard. You can still move using your feet like a skateboard, but the Big Stick gives you the option of working your arms, back, abs and chest.
Here is a video showing it in motion:
For all of you out there who are financially challenged, you can probably create something like this on your own. As soon as the snow melts off the sidewalks and the streets, you can get out there and enjoy a whole new way to exercise!