By now many of you may have heard of Buckyballs, "The amazing magnetic desktoy you can't put down." If you haven't heard of this cool little creation, basically it is 216 little magnetic balls that you can twist, mold, shape and fidget with all day. For the Holiday season, MacNN is giving away three sets of Buckyballs to our readers. To enter, just tell us why you need to have one of these sets. We will chose our three favorite entries and their answers will be published with their names on December 27th 2010.