1/2 watermelon, seeded and cut into chunks (8pounds)
1 pineapple, cut into chunks
1 liter silver tequila
4 cups orange juice
1/2 cup lime juice
48 ounces pineapple juice, unsweetened
4 oranges, each cut into 8 pieces
2 lemons, sliced
3 star fruits, sliced
6 limes, each cut into 8 pieces
3 ruby grapefruit, each cut into 8 pieces
3 - 12 oz. cans squirt soda

Place watermelon and pineapple chunks in a 2-gallon jar with a lid. Add tequila, juices, oranges, and lemons. Chill 6 to 8 hours, stirring occasionally. Two hours before serving, add star fruit, limes and grapefruit. 

Serve punch over crushed ice in a large wide-mouthed glass, with a generous splash of squirt and a straw.