STIR boiling water into gelatin in large bowl at least 3 minutes until completely dissolved. Cool 30 minutes at room temperature.
POUR milk into medium bowl. Add pudding mix. Beat with wire whisk 1 minute. Quickly pour into gelatin. Stir with wire whisk until well blended. Pour into 13x9-inch pan.
REFRIGERATE 3 hours or until firm. Dip bottom of pan into warm water about 15 seconds. Cut gelatin into bunny shapes with cookie cutter all the way through gelatin. Lift from pan. Makes about 18 bunnies.