Remove the stems from the strawberries and cut them into bite-sized pieces (about 4 pieces per strawberry). Place the strawberries in a large serving bowl.
Add the blueberries to the bowl with the strawberries. Wash and core the Honeycrisp apples, then slice them into approximately ΒΌ-inch-thick slices.
Place the apple slices in the bowl of lemon water to prevent the apples from browning. When ready to serve, remove the apple slices from the lemon water. Pat dry. Then use a small star-shaped cookie cutter to cut stars from the apple slices. Add the apple stars to the fruit mixture.