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I've been out to a (re-creation of a) pirate radio ship, 237SJ, back in the early 1990s. It was when Radio London had a ship moored just off the coast of Walton-on-the-Naze, using a special event licence. Getting up (and worse, down) the rope ladder on the side of the ship was a bit tricky!
At that time I had friends who ran a café in Walton-on-the-Naze, which sold takeaway pizzas in the evenings. A sign in the café advertised 'free delivery to anywhere within a 1 mile radius'. Of course the DJs could resist testing out whether that included out to sea, so they ordered some pizzas to be delivered to the ship.
My friends decided to meet the challenge and, after hurriedly phoning around to find someone with a boat, they got the pizzas out to the ship ;-)