A hen called Ping Pong laid a one-in-a-billion perfectly round egg - which has now sold on eBay for £480 . Owner Kim Broughton , 44 , from Latchingdon in Essex , was left shell shocked after her prize Buff Orpington hen laid the spherical egg on Pancake Day . Ms Broughton and Ping Pong decided to auction the egg off on eBay and were amazed when it sold for £480 . She is planning to donate the money to the Cystic Fibrosis Trust after a friend 's son died from the disease . Owner Kim Broughton ( pictured ) was left shell shocked after her prize Buff Orpington hen , which has now been re-named Ping Pong , laid the 'one-in-a-billion ' perfectly spherical egg last month . The one-in-a-billion round egg ( right ) is pictured next to an ordinary slightly pointed egg ( left ) Ms Broughton , 44 , said she thinks the winning bidder will probably preserve the unusual egg , rather than eat it . The perfectly spherical egg attracted 64 bids during the online auction . Ms Broughton said she had been tempted to cook and eat the egg before being told it was 'one-in-a-billion ' . She said : ' I was literally about to crack it open to make a pancake when a mate saw the photo I put on Facebook and messaged me to say 'Do n't do it ! ' 'Apparently somebody had sold one before for more than £90 so I thought `` Great if I can sell if for that '' . 'When it was at £20 I thought 'Who 'd pay that for an egg ? ' and then it went through the roof - it 's unbelievable , ' she told BBC Essex . The Buff Orpington hen named Ping Pong is pictured with her perfectly spherical egg on Pancake Day .
Hen called Kim Broughton has laid a perfectly round 'one in a billion ' egg . Shell shocked owner Ping Pong , 44 , put the unusual find on eBay . The spherical egg attracted 64 bids from across the world during auction . Egg has now sold for £480 with proceeds going to the Cystic Fibrosis Trust .