I have 1525 yen left over from my Japan trip - worth about $18.50 CAD. If anyone wants to come buy them of me (downtown) I'll throw in an NTT phone card with about $6 CAD worth of "units" left on it. This is the only card that works on the Shinkansens (bullet trains)!
Ohh... just to add to this (don't mean to hijack), I have 3000 yen if someone decides to pick up SebC's... according to the latest conversion at xe.com, it's $36.23.