That sister of yours needs to understand that these are not just tools of our hobby, but can also be weapons as well (just kidding)! It is sacrilege but it depending on what needles she is using. If they are cheap junk then let her at it. If they are Harmony's or Addi's or that sort of needles then grab them and run.......
I love to give homemade gifts... which one of my kids do you want?
Find our "Canadian Oddball Blanket KAL" on Ravelry as: OddballBlankets