This ebay seller is flogging them cheap. I won mine with a best offer for $32 ($30 was rejected). Total price was just over £25 including delivery to UK, no duty or VAT (take that argument elsewhere). It arrived today, took 8 days to arrive.
That ad has finished now, but they have loads more in their store, different colours and teeth count.
Obviously I don't know what offers they'll accept, but its worth a punt!