There is a fork lock blank on eBay.  I don't have my keys with me to check if the grooves are the same.   (raining and had to drive the pickup)



http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=280282771058

Bought an ignition key blank at the dealer. They'll need to know the letter prefix on the key in order to get a blank that is for your bike(there's four different types). Ace Hardware cut the key for me using the original and the blank. The blank was like $6, and no problems at all.