Fiona's right (as per her post on the Bag Lady about a nifty seahorse pendant), seahorses are everywhere! Seems the time of owls has long gone (bye, 2006!) and stuff like this nifty, folded leather American Eagle keychain are saturating the market. It can be yours for a mere US$5.50! I rather like it for its simplicity and lack of dainty details, 'cos I absolutely hate it when my keychain begins looking run down because I carelessly toss my keys all over the place. This leather keychain, on the other hand, will only look better with use. (Behold the timeless chic of worn leather!)
Related: Seahorse crystal necklace | Vintage owl patches | Dorothy Perkins' seahorse & dragonfly multibead necklace
Mulberry has them for "only" about 160 dollars American.