This, from http://www.bovada.lv/:

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How long will it take Patti LaBelle to sing the national anthem?
Over/Under                    2 minutes and 25 seconds

Will there be rain or snow during the 2012 Winter Classic?
Yes                  +250
No                    -400  "

What will be the game time temperature at the start of the 2012 Winter Classic?
Over/Under                    43 Fahrenheit (6 Celsius)          

Will there be a weather-related delay during the 2012 Winter Classic?
Yes                  +400
No                    -600

Who will win the 2012 Bridgestone NHL Winter Classic Alumni Game?
New York Rangers         -110
Philadelphia Flyers         -110

How Many Goals will be scored in the 2012 Bridgestone NHL Winter Classic Alumni Game?
Over/Under                    7.5

Who will score more goals in the 2012 Bridgestone NHL Winter Classic® Alumni Game?

Bobby Clarke                 +115
Glenn Anderson             -145

Mark Howe                    Even
Brian Leetch                  -130

Bill Barber                     +110
Mike Gartner                 -140

Eric Lindros                   -130
Mark Messier                Even

John LeClair                  -110
Adam Graves                 -110

Jeremy Roenick             -140
Nick Kypreos                 +110

Will an outdoor NHL game be held in Canada in the 2012-2013 Season?
Yes                  +150
No                    -200