It's the power chord of calendars--an obsessive and exhilarating selection of glorious, one-of-a-kind instruments that celebrates the magic and pure mojo of the guitar and the people who make and play them. A wildly ornate BecVar, featuring snakes with turquoise eyes, a Polish white eagle, and other whimsical touches. Prince's self-designed "Yellow Cloud" guitar (sold at auction for $225,000 in 2018). And Fender's colorful but short-lived "Bowling...