What do you mean by a 'dry ice machine'? Dry ice is solidified carbon dioxide, and needs specialist equipment to reuce the temperature or compress the gas until it reaches a solid state. There never was, and I don't suppose there is now, a machine which would produce dry ice other than the rather complex and certainly non-portable ones used by the chemical companies who produce this form of carbon dioxide, which is not the easiest substace to handle in any case