In Reply to: I have bought posted by bali_addict on Friday, 18. March 2011 at 06:02 Bali Time:
from tourists who give them away thinking that they are going to be made into bracelets/bangles, when really the Balinese use a cheap metal to make the bangle up with, then on sell the coins to the airport staff who then try to exchange them for paper money which can then be changed into rupiahs.