CHICAGO—Two sisters from Virginia sold their Illinois-shaped corn flake on eBay Friday night for $1,350.

“We were biting our nails all the way up to the finish, seeing what would happen,” said Melissa McIntire, 23. “There’s a lot of relief involved.”

The winner of the auction, which lasted more than a week, is the owner of a trivia Web site who wants to add the corn flake to a traveling museum.

“We’re starting a collection of pop culture and Americana items,” said Monty Kerr of Austin, Texas. “We thought this was a fantastic one.”

Kerr owns TriviaMania.com and said he will likely send someone to Virginia to pick up the flake by hand, so it won’t be damaged. This isn’t the first corn flake that Kerr has tried to buy. He said he purchased a flake billed as the world’s largest, but that by the time it was delivered it had crumbled into three pieces.