Every year the radio station KBCO holds a cardboard sled race at the Arapahoe Basin ski area in the mountains of Colorado.
As you look at these pictures remember, the entire sled was made out of cardboard and duct-tape, no other materials were allowed except as decorations. Some of the sleds were amazing, some were just sleds. Some were so fast the operators almost got hurt, some so slow the drivers had to actually get out and push them down the hill.
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