I was at Wolfsburg Parts in Mtn View on Monday (yes, they were open on Monday!). There was a non-laser key blank in a display case. The kind where half the plastic grip snaps over the other half to fasten to the shank.
I might have to go there today. I'll ask about the key blank. Or call them at 650 964-4144.
www.************************ has blanks as well.
Some locksmiths have a machine that will cut a security key. There's a locksmith by Valley Fair in Santa Clara that cut a key for my 95 S420. Didn't ask for proof of ownership
Sixto
93 300SD