Use serrated knife to cut about one-third off round cake to make 2 pieces, 1 larger than the other, both with a straight edge. Spread about 1 tablespoon frosting on cut side of larger cake layer. Stand larger cake layer, cut side down, on tray or serving platter. Spread about 1 tablespoon frosting on cut side of smaller layer; stand cut side down in front of larger layer. Lightly press layers together to form the 2 layers of the turkey cake, using photo as a guide.