How about a lime sherbert punch with gingle ale for fiz? I love that stuff, and it makes the party seem more special, like a baptism or shower or confirmation, instead of a regular party. Of course, people like regular drinks, too.
Have fun and congrats to your daughter!
ADDED: Here's the recipe from the internet - my favorite is Lime Sherbert:
SERVES 15 , 120 oz
1/2 gallon sherbet
1 (64 ounce) can pineapple juice
1 (2 liter) bottle ginger ale
Leave the glass punch bowl in the refrigerator overnight to get it very cold. Take it out and put it on the serving table no more than 10 minutes before serving the punch.
Thaw the sherbet slightly, but not until it is melted; it just makes it easier to mix up this way.
Pour cold pineapple juice into the punch bowl. Using an ice cream scoop, add rounded scoops of sherbet to the juice.
Pour the ice cold ginger ale over the sherbet and pineapple juice. The sherbet will begin to melt and the punch will quickly assume the color of the sherbet. (some people might prefer sprite or 7-up)
Start serving the punch within 5 to 10 minutes of adding the ginger ale.