When British talk show host, Graham Norton, mentioned this on his show, I didn't believe it was real. But while watching a recording of a Graham Norton highlights show, I decided to check out
http://www.kittywigs.com It's really there, click to enter and you'll see cats wearing the wigs. Be sure to read the page describing the package, a "special paw proof metal container." Indeed - to keep kitty from ripping it apart before you attempt to put it on him or her again.
And then go to the "About us" page.