It sounds like these room-temperature time crystals must be driven by continually applying external energy via the driving frequency, or did I misread that? Is

It sounds like these room-temperature time crystals must be driven by continually applying external energy via the driving frequency, or did I misread that? Is it feasible to create my own time crystals? Or acquire one? I would love to add a time crystal to my existing space crystal collection, even if it requires some sort of support to maintain the driving frequency. I haven't read the paper yet, but it sounds like I could apply a particular frequency to a strip of nickel-iron alloy and practically achieve such an effect? Do any physicists here know whether that would be feasible?