1 lg. can pink frozen lemonade
1 lg. can water
1/2 c. grenadine
1 cup of vodka
Mix well and freeze until mixture turns to slush (at least 2 to 3 hours); stir occasionally. Fill glass 1/2 full with slush. Fill remainder with 7-Up or if you want your drink to pack more punch skip the 7-Up and use sparkling wine or champagne instead.
Just keep doubling and tripling the amounts, so your freezer never runs dry.