Fit #10 tip in decorating bag and fill with 2 containers frosting. Arrange cupcakes on platter, fitting snugly together in spiderweb design. Use tip, with smooth side facing up, to generously pipe frosting over cupcakes. Using spatula, spread frosting smoothly over cupcakes. Fit #862 star tip in decorating bag and fill with remaining container frosting. Generously pipe frosting around edge of spiderweb shape.