I'm making a chain mail suit of armor out of theses! The best places to get them are ask people u know to save them or just run around your neighboorhood and look in the recycle bins.
They aren't that hard to find and you'd be suprised how much pop people drink! If any one has any of these laying around I'd love to have them, I can trade with you or pay shipping.
if you still need some i have about 12,000. just PM me... or anyone else for that matter!
but over the last 4 years (wow) i've collected these by posting bulletins on myspace offering to clean up after parties in exchange for these recycled treasures... you better believe everyone called me to let me know about their shindig!
and also leaving ziplock bags at friends' and family's houses.