You get a load of fruits of different sizes that fit inside each other like russian dolls, and you carve them like pumpkins. They look really cute when they're all lined up, and it's a quick easy fun project that anyone can do.
Step 1: procurement
Go to the supermarket and buy the fruit. We used, in order of descending size:
check the sizes, and try to get quite round fruit. e.g. rummage around for a -round- lemon.