Willie Nelson
Andy Mills / Star Ledger / Corbis
Trigger Willie
Guitars can become as famous as the musicians that wield them. Neil Young had Old Black, B.B. King had Lucille and Willie Nelson had Trigger. Named after the American singer Roy Rogers' horse, Trigger is a Martin N-20 nylon-string acoustic. The body is covered with about a hundred signatures by friends and associates ranging from Johnny Cash to Waylon Jennings.