1. In a large bowl, combine sugar, milk, whipping cream, and vanilla. Have one of your larger little helpers hold open one quart-sized bag and pour half of the mixture into the bag and zip shut, squeezing out all the air. Use duct tape to tape the opening shut (we actually, in a pinch, used electrical tape and it was fine!). Repeat with second bag.

2. Place one filled bag inside one gallon-sized bag and sprinkle 1 cup of ice cream salt around the smaller bag. Add as much ice as you can comfortably fit into the gallon-sized bag, squeeze to remove excess air, and zip shut. Maneuver the ice around to make sure there's ice on all sides of the smaller bag inside. Place in freezer while you repeat the process with the second bag.

3. When the second bag has been prepared, head outside. Be sure to bring the leftover ice and rock salt because you're probably going to need to drain some of the salty water and replenish the ice supply while you're tossing the ice cream. Let each kid take a turn (or a couple) tossing the bags of ice cream into the air or to each other. It gets C-O-L-D, so a pair of gloves won't hurt anybody!

4. After about 10-15 minutes, remove the quart-sized bag and rinse off the saltwater. Cut a hole in one corner of the bag and squeeze the ice cream into individual dishes. Let everyone add their desired toppings and have at it! It might be a little melty, but I promise, not a single person will complain!