Check out this tutorial from Jodie down under. Jodie is developing them for the Whiplash Challenge over at Whip Up. She recommends looking for old plastic needles at an ‘op shop’ — which I believe is Oz speak for a charity shop like Goodwill or Oxfam.
I know know I have some lonely needles in a bunch inherited from an aunt, so they have sentimental value. I haven’t wanted to toss them, but I really could find no good reason to keep them. See? I did have a good reason. If it ever cools down again, I may pop one into boiling water and see what happens. Or, maybe just leave it outside for a while. That should work just as well.