"Exactly!" Justin chimed, growing enthusiastic about the idea. "Or even something like that clock of Mrs. Weasley's, just something to let us know when trouble is coming so we can do something, rather than leaving them defenseless."
Not that it had helped Harry any, or Penelope Clearwater, or any of the others. But perhaps... "Maybe not just for the Muggles, either. Harry probably didn't know there was much of a threat to his life, else he would have kicked their arse. You, Ern, Alicia, you could all have something on you to tell you when there's trouble. That way you can Apparate away or something."