Here's what you need:
2 cups hot water
4 unflavoured gelatin packets
1 bottle of cream soda
3/4 bottle of champagne (extra dry for sweetness)
How to make them:
Boil two cups of water, and mix in 4 packets of unflavoured gelatin. Let cool for a few minutes.
Add one bottle of cream or vanilla soda, and 3/4 a bottle of champagne.
Refrigerate 3 - 5 hours. (Over night for a definite set)
If set in a pan, use a knife sprayed with cooking oil to cut. Or to make life easier, refrigerate in separate plastic cups.
Top with sprinkles and/or pop rocks, directly before serving! The pop rocks/ sprinkles will melt, so be sure to consume quickly!