Frost The Tops Of 12 Large Marshmallows; Stack A Large Marshmallow On Top Of Each. Quarter The Remaining Large Marshmallows; Set Aside For Ears. Tint 1/4 Cup Frosting Pink. Cut A Small Hole In The Corner Of A Pastry Or Plastic Bag; Place Pink Frosting In Bag. Pipe A Ribbon Between The Stacked Marshmallows For Bow Tie. With White Frosting, Attach Red Hearts For Eyes And A Pink Heart For Nose. Pipe Pink Whiskers And Smile. For Ears, Pipe The Center Of Quartered Marshmallows Pink; Attach To Head With White Frosting. With The Remaining White Frosting, Attach The Miniature Marshmallows For Legs And Tail. Let Stand Until Dry.