A fan has claimed Nickelodeon used his SpongeBob SquarePants artwork without his permission. Matt Salvador, 17, says the art was featured in an advert for the show which was aired in June.

A yellow sea sponge named SpongeBob SquarePants, who enjoys being a cook at Krusty Krab, lives in the Pacific Ocean. He embarks on various adventures with his friends at Bikini Bottom.