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SKI-DOOS
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Engine Powered
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Human Powered
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Tank Ski-doo
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It Is Actually A Ski-Doo!
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This is the first ski-doo to have a track
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One Of The Newest Skidoos At The Time.
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http://upload.wikimedia.org/wikipedia/commons/thumb/0/03/Coanda_snow_sleigh.jpg/220px-Coanda_snow_sleigh.jpg http://upload.wikimedia.org/wikipedia/commons/thumb/c/c9/Homemade-Snowmobile-1910-Pf008245.jpg/220px-Homemade-Snowmobile-1910-Pf008245.jpg http://upload.wikimedia.org/wikipedia/commons/thumb/7/77/Aerosan.jpg/220px-Aerosan.jpg http://upload.wikimedia.org/wikipedia/commons/thumb/c/ce/1951B12a.jpg/220px-1951B12a.jpg http://en.wikipedia.org/wiki/Snowmobile