Other options:
-Convert overtime into a series of 60 yd FGs. Whichever kicker hits one first wins. After 10 misses, it's a tie.
-2 point conversions are the same as an extra point, except the other team gets to pick which player on your team kicks it. "Ducasse is on to try the 2 pt. conversion"
-Adjustable width goal posts: 2 pt conversion the same as a FG except the goal posts are now only 4 ft apart.