Place cooled cake rounds side by side with sides touching on 18x11-inch serving platter or foil-covered cardboard. From 1 cake round, cut crescent-shaped piece from outer edge for tail; remaining portion of cake round is the head. (See diagram.) Cut 2 small triangles from each end of "tail;" place on top of "head" for ears. Place "tail" to side of "body," trimming to fit as needed.