The Flat Horse and Slug- that's the pub name my daughter came up with when she was 3.

I always liked the Railway and Naturalist on Bury Old Road, Manchester.

And the Flying Saucer in Lutterworth.

There was one in Peterborough that was on the market so long that they renamed it after the estate agent- the Jackson Stops.

NON PC ALERT
Then there's the Quiet Woman at Earl Sterndale- complete with pubsign showing a headless woman. A former landlord is supposed to have been provoked to murder by his wife's nagging.