Frozen Pineapple Ice Cream Sandwich

1 (16 ounce) container frozen whipped topping, thawed

1 (20 ounce) can canned crushed pineapple, drained

1 (3.4 ounce) package instant vanilla pudding

36 graham cracker squares

In a large bowl, beat together the thawed whipped topping, crushed pineapple and vanilla pudding mix for 2 minutes. Spread pineapple mixture 1/2 inch thick between two graham crackers. Wrap gently in plastic and freeze for 2 hours.