Some wish machines that have breathed their last, sooner or later disintegrate into their individual parts, are thrown into boxes and stored in cellar niches. Others are carefully beaten into cloths, packed into a suitcase and stored in an attic.
Dream predators have a flair for this. They collect such survivals, repair them or use them to make components for dream converters. A conversion machine is a wish machine that has been newly set in motion by upcycling.