Have you tried eBay or Drs. Foster and Smith? There also may be some on the Corgi Aid site. Try http://www.corgiaid.org/shop/index.php. You may find something you like and help less fortunate corgis as you shop!
Those are all awesome websites, I also had seen the keychains at petsmart but didnt see the corgi one, now there are so many choices to make, I just might have to buy everything I see, lol! Too hard to decide with all these great websites. Thank You everyone for the website info, I am always looking for good website to shop at!