Heat oven to 350 degrees. Prepare cake batter as directed on package. Spoon batter into paper-lined muffin pan, filling each cup 1/2 full. Bake as directed on package. Cool cupcakes in pan 15 minutes, then pierce with two-pronged meat fork at 1/4 inch intervals.
Dissolve gelatin completely in boiling water. Gradually spoon over cupcakes. Refrigerate 3 to 4 hours. Frost with whipped topping. Draw umbrellas on cupcakes with decorating gel and sprinkle with sugar if desired.
Or, as mentioned in the heading, use an umbrella pick (for adults only)and serve these at showers, etc.