Any good lock and safe outfit can duplicate it, and instead of the fat plastic honda base, they do so with a flat blank, which carries in a wallet... flatter.
On trips, I like a back up key in my wallet, which is never locked in my bags.
However, since that key fits the ignition, tank, bags, trunk, seat and fork lock, you should never leave the place making it for you before working it in each lock on the bike. (Another reason to go to a good lock and safe outfit, skip walmart)
good advice Jess, I went to an Ace hardware and had some made. They work on the ignition and seat, but nothing else.
