Thai vets removed 915 coins from the stomach of a 25-year-old turtle sea turtle dubbed 'Piggy Bank' during a grueling seven-hour surgery on Monday. The small fortune was built up over years of gulping down good luck pennies tossed into a pond. The sea turtle was sent to Bangkok with a cracked shell but an X-ray unexpectedly revealed the coins, which came in various currencies and weighed a total five kilograms.