J.F.
punch is great because the recipes can be made up easily... you can really put anything you want in them and they are tasty! As long as you have some fruity flavor, some fizzy drink and some sherbert you're good to go!
There's tons of recipes out there - all depends on what color and flavor you want it to be!
The one i just used for my good friend's baby shower was pineapple juice, pink lemonade, cherry syrup, 7up, and raspberry sherbert... was the first time i made it and it was soooo delicious!
And i like to put either an icering (made of juice so it doesn't dilute the drink as it melts), ice cubes or frozen fruit to keep it cold (but the sherbert should keep it cold too!)
Have fun! :)