I would hate to eliminate interesting links because they come from a commercial site. This is not an ad and the company does not do business with Neatorama (as far as I know).
SparkS, I don't think they are prescription lenses. I think they function only as a protective eye cover, to keep the cat's lashes from rubbing the eye surface.
I bought a coffin once. There was only a choice of two, because it had to be oversized. I picked the one that was his favorite color, then found out I would be saving hundreds of dollars with that particular one, because it had a tiny scratch.
http://www.neatorama.com/2007/12/12/two-forks-one-cup/
http://www.youtube.com/watch?v=zlfKdbWwruY
take the code after the ?v= which would be
zlfKdbWwruY
add it to the benny hillifier, which gives you
http://james.nerdiphythesoul.com/bennyhillifier/?id=
zlfKdbWwruY