JELLO POOL CAKE

Steps:

• 1. Prepare cake batter and bake in 13x9-inch pan as directed on package. Cool completely. For easy removal of cake, line pan with foil before filling with batter.
• 2. Invert cake onto platter; remove pan. Use serrated knife to cut and scoop out shallow rectangle from center of cake, leaving 2-inch border of cake on all sides and thin layer on bottom. Discard or reserve removed cake for snacking or other use.
• 3. Add boiling water to gelatin mixes in large bowl; stir 2 min. until completely dissolved. Stir in cold water. Refrigerate 1-1/4 hours or until slightly thickened. Pour into center of cake. Refrigerate 3 hours or until gelatin is firm.
• 4. Frost borders of cake with COOL WHIP. Decorate with remaining ingredients as desired to resemble a swimming pool. Keep cake refrigerated until ready to serve.
• 5. OPTIONAL: Insert bite-size fish-shaped and octopus-shaped chewy fruit snacks into gelatin "pool" before refrigerating.