The Play & Freeze™ ice cream maker, from Industrial Revolution in Redmond, Washington just might be the greatest camping gadget ever invented – at least if you frequently camp with kids. You might have seen these before and wondered if they were just some cheap gimmick, or if they actually make good ice cream. Let me assure you, there is no difference between the ice cream that comes out of the Play & Freeze and the ice cream that comes out of any regular ice cream maker.