Before his "world championship" rematch against Boris Spassky in 1992, Bobby Fischer played a series of 10 training games against his old friend, the former super-GM Svetozar Gligoric. Well-known collector David DeLucia released three of the game scores last year (why not the other seven?), and they can be replayed on ChessGames.com - you'll find them at the end of the list on this page.
HT: Brian Karen