Candy shop owner Jose Martinez shows an official Spanish 1 Euro coin with the face of Spanish King Juan Carlos (L) and another one altered to look like a face of cartoon character Homer Simpson in the northern Spanish town of Avile August 8, 2008. Martinez found the Homer Simpson coin in his shop's cash register while counting the days' transactions last week. REUTERS/Eloy Alonso

MADRID (Reuters) - A one euro coin has turned up in Spain bearing the face of cartoon couch potato Homer Simpson instead of that of the country’s king, a sweetshop owner told Reuters on Friday.

Jose Martinez was counting the cash in his till in the city of Aviles, northern Spain, when he came across the coin where Homer’s bald head, big eyes and big nose had replaced the serious features of King Juan Carlos.

“The coin must have been done by a professional, the work is impressive,” he told Reuters.

The comical carver had not taken his tools to the other side of the coin displaying the map of Europe. So far, no other coins of the hapless, beer-swilling oaf have been found in circulation.

“I’ve been offered 20 euros for it,” said Martinez.