Preheat oven to 375° F.
Pour melted butter into a 13" x 9" baking dish.
Open both cans of rolls. Separate the rolls and cut each into four pieces. Place pieces into the baking dish.
Beat the eggs in a medium bowl. Whisk in the cream, cinnamon and vanilla. Pour over the tops of the cinnamon rolls.
Sprinkle nuts over tops of rolls and drizzle with 1 cup of the syrup.
Bake for 20-30 minutes or until golden brown. Let cool for 15 minutes.
Drizzle remaining syrup over rolls.
Microwave the icing containers on half power for 10-15 seconds. Drizzle over rolls.