Montblanc Great Characters The Beatles Special Edition Rollerball. The cone is inspired by the button of the mixing table at the famous Abbey Road studios, while the cap top is inspired by the studio's microphone. The clip symbolizes the iconic mustache of the Beatles on their portrait. The colorful stripes on the lacquered cap and barrel pay tribute to the costumes they wore on the album covers of 'Sgt. Pepper's Lonely Hearts Club Band' and 'Love Me Do'.