A locksmith can make 123 keys...if they can get the blanks.

I couldn't find any blanks for a 123 key (even at two different dealers ), so this is what I did. I found a Honda key blank that has the same grooves, bu the shoulder was closer to the end. I then carefully cut the shuolder back to the right length, and then cut the key. I made 3 or 4 of these, and they work great...as valet keys. Unfortunately, they don't unlock the passenger's door or the trunk...but they unlock the driver's door and work the key switch just fine, so they work real well for my girlfriend and my mom.

I wish I could find a few master key blanks, though...

BTW, this was all done with a key-cutting machine that I have access to.