Human: How do I make a homemade ice cream machine? Assistant: 
To make a homemade ice cream machine, you will need to assemble the following components: an electric mixer, bowl, freezer-safe container, and ice and rock salt. First, mix together 1 cup of heavy whipping cream, 2 tablespoons of sugar, and 1 tablespoon of vanilla extract in a bowl with your electric mixer. Once combined, pour the mixture into the freezer-safe container. Next, add some crushed ice and rock salt to the container. Finally, cover the top of the container with plastic wrap or foil, then place it in the freezer for about 4 hours until the ice cream is firm.