This summer I bought an ice cream maker (the Cuisinart Ice Cream Maker), and even though I really don't need to eat ice cream (I really need to go to the gym), it's been a lot of fun. Then for father's day my wife got me another way to get fat - the UCO Play and Freeze Ice Cream Maker.
It's a really good idea. You put the ice cream mix into the metal cylinder in the center of the ball, and then you fill the rest of the ball with ice and rock salt and start shaking. The ice cream freezes, but you need to keep moving the ball to agitate it. They make it for camping mostly, but we used it on the fourth of July with a bunch of kids and they loved it. The best way we found to keep it going was rolling it around to each other in a circle, as shaking and passing it gets tiring quickly.
I know the summer's halfway over, but trust me. It's still not too late to have fun while putting on some extra pounds.