Heat oven to 350°F. Generously grease and flour bottoms and sides of 8 regular and 8 miniature muffin cups. In large bowl, combine cake mix, water, oil and eggs. Beat at low speed until moistened; beat 2 minutes at high speed. Using about half of batter, fill greased muffin cups 2/3 full. (Bake remaining batter as directed on package in paper-lined muffin cups or in greased and floured 8-inch round or square cake pan. Wrap and freeze for a later use.)
Bake miniature cupcakes at 350°F. for 12 to 15 minutes and regular cupcakes for 20 to 25 minutes or until cake springs back when touched lightly in center. Cool in pan on wire rack 10 minutes. Remove cupcakes from muffin cups. Cool 30 minutes or until completely cooled.
To make each snowman, frost sides of 1 regular cupcake. Place dab of frosting on center of doily; place bottom of cupcake on doily. Frost top of cupcake. Frost sides of 1 miniature cupcake; place, right side up, in center of regular cupcake. Frost top. Smooth frosting over entire snowman, rounding shape slightly.
To decorate each snowman, use 2 miniature chocolate chips for eyes and 3 for buttons. Cut small sliver of orange gumdrop for nose and small piece of red gumdrop for mouth. Place large gumdrop on head for hat. Place 2 small gumdrops on sides of body for arms. Cut fruit snack string into 8 (7-inch-long) pieces; arrange 1 piece around neck to resemble scarf.