Mobility by Rollerblade

www.rbx.ownlog.com
http://blading.at.webry.info/200907/article_9.html
http://fsk.inlineskate.com.tw/modules/tadnews/index.php?nsn=92

Alpha Swinger

Michael Wörl, an inventor from Munich, developed the Alpha Swinger

see also,
www.wipo.int/ipdl/en/hague/key.jsp?KEY=DM/057249

Single Wheel Segway

http://acuteaero.com/2010/04/20/a-one-wheeler-the-uni-pogo/

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stickwheel by socrates1024

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the "Thing"
www.youtube.com/user/XenonJohnD
www.sites.google.com/site/onewheeledselfbalancing/Home/one-wheeled-stand-up-scooter

Tarp Surfing

Freerider Skatecycle

www.brooklynworkshop.com/wdp/
www.gizmag.com/freerider-skatecycle/15721/

Treadway Mobility

www.treadwaymobility.com/
www.petertreadway.com/
www.gizmag.com/treadway-motorized-footwear-transport-solution/15666/

Skateboard Car

BodyFlight - Indoor Skydiving

www.bodyflight.net/

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Appalachian Amusement Park

Giant Skateboard at Woodward

SkateCars - Signal Hill

Vetter


Powerflex


Turner


Silverstreak


Stroker


Dillberg


Hobie


Hester






http://articles.latimes.com/2007/nov/18/sports/sp-signalhill18