In Canada they have a contest where engineering students from all around the world compete to build the fastest concrete toboggan.

Wait, what?

They also wear goofy costumes and run into the crowd.

Tomorrow, if you’re in the greater Hamilton Ontario area, you can witness the Great Northern Concrete Toboggan Race yourself. Expect to see

• teams of five ride 150 kilo. sleds to speeds above 60 kph
• costumed revelry, not always appropriate for the weather
• exemplary standards of professional decorum

A fair warning however, spectators who stand too close might become part of the action.
Check out this long video for more good moments, but skip the dreadful two minute long narration in the middle.