I emailed Lantern Moon just after making this post on Sunday. Monday I heard back from Carma, and she sent out not only a replacement needle for the one that broke, but two more in size 2, just in case I break another one on my trip. Then I asked about the size 1s I also have, and even though I haven't broken one, she sent me 3 backups! How's that for customer service?!?
Oh, and I love their DPN protection technology.
Stuff them through the holes in corrugated cardboard!