Homemade Ice Cream in a Coffee Can

1- 1 lb coffee can with lid
1- 3 lb coffee can with lid
1 pint of half & half (milk can be used instead
1 egg, beaten
1/2 cup sugar
1 tsp vanilla, 2 T. of choc. syrup, or 1/4 c of strawberries
Add all of the above ingredients to the (1lb) coffee can. Put the lid on the coffee can and secure with duct tape. Place the 1 lb coffee can into the 3 lb coffee can. Surround with crushed ice and rock salt and place the lid onto the 3 lb coffee can.
Have your kids sit on the ground and roll back and forth 3 to 4 feet apart. Roll for 8 to 10 minutes. (The kids can kick the can back and forth as well.) Check to see if the ice cream is hard; if it isn't replace the lid, add more ice and rock salt. Roll for another 8 mins.