Chester the labrador - named as we got him the same weekend we saw Linkin Park live for the first time.
Charlie the Border Collie - just the name he had from the shelter.
Mu and Jeeves the cats. Both black & white. One like a friesian cow, one looked like he was wearing a bow-tie.
Now we have Jack the Cockapoo. Kids named him as they were on a Jack Black movie spree at the time. Shallow, but it's their dog so <shrug>