The family of Britney Spears' ex husband Kevin Federline are set to cash in on her celebrity as they put up several items from the couple’s happy days up for auction, including a wedding invitation.

Federline’s grandfather Earl Story has put items up for bidding on eBay including an invitation to the couple’s 2004 wedding, another invite to one of Britney’s baby showers, an intimate portrait of a pregnant Britney and 14 wedding pictures.

A message is included along with the auction explaining that Story is attempting to fund his retirement with the items. “With the recent death of his wife Betty, (Kevin's grandmother) Earl no longer wishes to keep these items when they can be appreciated by a collector.”

The couple divorced in 2006 after having two children over their two years of marriage.

Watch Britney and Kevin during happier times on ‘Ellen’ below: