Here’s an innovative sports financing idea: generate capital by selling bonds that pay the bondholders in tickets, not cash. The All England Lawn Tennis and Croquet Club, the people who organize Wimbledon, have been raising cash since the 1920s by selling bonds that come with tickets to the annual tennis tournament. In the latest issuance, the club raised about $90 million through the sale of 2,500 of these bonds. Holders get a ticket to each day of the tournament that can be used or resold.