Cream Cheese Balls are a favorite with my three kids. My toddler loves to help me make them, so they work as an activity as well!
Divide one block of cream cheese into small squares (I cut the block in a grid with a knife, getting approximately 40 squares or so). Then, roll the squares into balls. Roll the balls into some sort of crumb mixture (wheat germ, Cheerio crumbs, etc.).
You can serve them immediately or freeze them for later use. I've found it helpful to freeze them even before first serving them since the warmth of your hands makes them very soft at first. Simply pull from the freezer 10 minutes or so before serving.