When we were there in November, lots of places had the Tink or Captian Hook ones. Lightning McQueen must be something new.
I know for sure (because we got them) LeCellier and kona had them, but we saw them at several TS restaurants. I'd say get them when you see them because the kids loved having them clipped to them at night. We clipped them to their pin trading lanyards, but they could be clipped to a hat or t-shirt or something.
I think the best part of them are that the batteries are replacable. Lots of time with those things when the batteries die that is it, I liked that these wern't like that.