Finely roll cookies or mash with masher. Combine cookie crumbs and butter. Press into bottom of plate or 9x13 inch pan. Spread fudge topping over crust. Freeze 15 minutes.
Meanwhile, soften 1 quart of ice cream. Spread softened ice cream over fudge layer. Freeze about 30 minutes. Repeat with second flavor of ice cream. Spread whipped topping as next layer. Garnish. Freeze until firm.
Boys favorite: Make a double recipe and put in an oval roaster. Decorate to look like a football.