Fill a large ziploc bag with ice and add 6 tbsp salt; put aside. In a medium bag, mix 1 cup half 'n' half, 2 tbsp sugar, and 1/2 tsp vanilla. Seal bag and place into ice and salt bag. Seal that bag and shake, Shake, SHAKE for approx 4-5 minutes. Remove ice cream bag from salty bag and rinse off before opening (trust me, you want to rinse off the bag, I'm just saying). Spoon into bowls, add toppings if you want, and then eat your delicious ice cream!!!! So yummy!!! "I had fun making ice cream" said Nate!