Layer ice cream sandwiches in a square pan (size depends on how large a cake you want. 20 sandwiches fills 2 layers of a 9×12 inch pan). Spread whipped cream on top and then caramel or fudge sauce on top of the whipped cream. You can also add Skor pieces, Reese’s pieces or chopped peanuts. Add another layer of ice cream sandwiches. Spread whipped cream on top of that. Add caramel or fudge sauce. Top with sprinkles, chopped peanuts or skor bits or any other ice cream topping. Freeze and serve.