The Solowheel, the safety brigade will crap bubblewrap over it but all I can think about is a sweet B.C. tie in:

A BikingToronto Blog
Duncan rides bicycles in the city of Toronto and contributes to the main blog of BikingToronto as well as writing and taking photos for his blog Duncan's City Ride.
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hahahaha. “the safety brigade will crap bubblewrap over it”. Nice.
that looks like fun :)