Instructions

Step 1
Using a sharp knife and keeping the rind intact, remove flesh from watermelon. Cut a 7cm wedge for the balloon tie. Cut the remaining flesh into 3cm to 4cm pieces.
Step 2
Place the watermelon shell, cut-side down, on a large platter. Push 1 toothpick into the base of each piece of watermelon, honeydew, pineapple and each strawberry. Using picture as a guide, and starting with the strawberries, insert toothpicks, about 3cm apart, into watermelon rind to secure, so the whole surface of the watermelon shell is covered.
Step 3
Place watermelon wedge at the base of the 'balloon' to form the balloon tie.
Step 4
Spoon frosting into a small snap-lock bag. Snip off 1 corner and pipe a thin line of frosting onto the platter to form the 'string'. Gently press grapes, end to end, into the frosting to secure. Serve.