Place the cakes one above the other for the head and body.
With a small tip attached to the icing tube, draw the mouth on the cookie muzzle. Place the jelly bean into the frosting for the nose.
Use the canned icing to glue the cookie muzzle and the candy eyes to the head.
Slip the peanut-butter sandwich cookies under the head for the ears.
Fold a long piece of fruit roll in half, lengthwise. Coil one end. Slip the other end under the body for the tail. Makes 1 serving.