The YayLabs! ice cream ball and the Sassafras ice cream maker are manual units and function similarly to the As Seen on TV Ice Cream Magic model. YayLabs! manufactures an opaque soft-shell ball and a hard, transparent ball that allows children to see the ingredients as the ice cream forms.
The Sassafras model requires batteries, while the YayLabs! models don't use any external power. One side of the ball's inner chamber is filled with ice and rock salt, and the other side contains the ingredients. The ball must be shaken repeatedly to make the contents freeze and thicken. The Sassafras ice cream maker is a simple two-cup tray, which the user fills with ingredients and stores in the freezer for at least four hours.