I picked up one of these when they were around, but never used it because I don't like metal swinging around the ignition and scratching things. Much prefer the old school leather fobs that used to be common, but you don't see them anymore.

 

Check your local Honda Dealer parts department. Some Honda Dealers have Honda Key Rings for sale.

Check your local Honda Motorcycle Dealer. They have Honda key rings for sale.

Check your local Cycle Gear Motorcycle store. They have Honda Key Rings.