Place egg whites in a small bowl; let stand at room temperature 30 minutes.
Preheat oven to 225°. Add cream of tartar to egg whites; beat on medium speed until foamy. Gradually add sugar, 1 tablespoon at a time, beating on high after each addition until sugar is dissolved. Continue beating until stiff glossy peaks form.
Cut a small hole in the tip of a pastry bag. Transfer meringue to bag. Pipe 4-3/4-in. bunny shapes onto parchment-lined baking sheets. Bake 1-1/2 hours or until firm. Remove to wire racks to cool completely.
In a microwave, melt candy coating; stir until smooth. Place in another pastry bag; cut a small hole in the tip of the bag. Pipe ears, whiskers and mouths on bunnies with melted candy coating. Attach hearts for eyes and nose.
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