There are many unusual prop bets available during the Super Bowl:

Length of the "Star-Spangled Banner".

Color of Gatorade dumped on the winning coach.

Heads or tails on the pregame coin toss.

How many times a star player's wife is mentioned.

The Indianapolis Colts ' signing of 44-year-old quarterback Philip Rivers takes the prop bet to new levels, according to BetOnline.com .

Philip Rivers prop bets from BetOnline

The Colts visit the Seattle Seahawks in NFL Week 15 action, and if you have a few dollars to spare, BetOnline has odds on the following: Expert MLB daily picks: Unique MLB betting insights only at USA TODAY

What will the CBS broadcast show first : Rivers' grandchild (-200) or his St. Michael Catholic (Alabama) football team (+150)? Rivers has a 1-year-old grandc

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