I notice a lot of questions here about piezoelectric oscillators, which I realize now makes sense given this community. A key difference to understand here is that the phrase "time crystal" is referring to a state of a particular "driven" system. So, the signatures we've observed are properties of not only the nuclear spins, but of their response to our driving pulses. So I could not for example "make an equilibrium time crystal and send it to you." Rather, to duplicate our particular results, you would need a clean MAP crystal, which you would then need to "drive" in a particular way, with energy input.

However, for applications, one could imagine a packaged system+driving apparatus with potentially useful properties... but that is just speculation on my part.