Frost entire cake with remaining tan, white and blue frostings as shown in photo. Use extra frosting to round edges of muzzle and legs to blend into body. For body and ears, make wavy strokes with offset metal spatula or knife to create furry appearance. With end of toothpick, use small swirling motions to create pattern on sweater and hat. Pull toothpick in short straight lines to create cuff on neck of sweater and bottom of hat. Sprinkle sweater and hat with candy sprinkles.