Pal has a Lewden 13 amp weather proof black painted diecast socket in his back garden, fed with Pyro. It is switched from the house, and has an RCD in circuit. It normally feeds a fountain, but is sometimes used for other things needing power at that end of the garden, on a temporary basis. It's probably 30 years old. ;-)
He's just had a patio laid, and they've smashed the socket.
Looking at the TLC cat, they appear to still do them. But by the pic, how are they fixed to the wall? The existing one has two lugs on the side for screws - presumably to keep the body watertight. The pic shows a different design.