Yesterday some of my daughter's playgroup friends came over and we did a "Make Your Own Ice Cream" party. It's a great little activity that lets the kiddos not only have fun but also experience the excitement of watching a liquid turn into ice cream.
First, combine 3 cups of milk, 1 cup of half & half, 2 tsp. vanilla and 5 tbsp. of sugar together in a large pitcher. Divide the mixture into four sandwich bags; seal.
In a quart-sized bag, add ice and rock salt (or "ice cream salt" as it's sometimes called).
Place the sandwich bag inside the bag with ice; seal.
Get your kiddo to shake the bag containing the bag with the ice cream mix vigorously for about 5-10 minutes.
After 5-10 minutes, they'll have made vanilla ice cream!
It will be about the consistency of soft-serve ice cream.
You could also try adding some flavorings to the ice cream before your precious kiddo shakes it up (chocolate syrup or cocoa mix, caramel, strawberry/blackberry/peach jam, etc).
If wanted, you could have a variety of toppings available for the kiddos to choose from: