Make cupcakes. Prepare batter following recipe directions. Bake and cool cupcakes in disposable bakeware on cookie sheet according to package directions.
Decorate cupcakes. Prepare buttercream icing following recipe directions. Tint portions of icing orange, violet and green. Use tip 18, cut disposable decorating bags and green or orange icing to pipe pull-out stars on top of half of the cupcakes. Use tip 233, cut disposable decorating bags and violet or yellow to pipe pull-out grass on top of the other half of cupcakes.