Knucklebonz Rock Iconz 2018 ZZ Top Billy Gibbons Inspected and Photographed certificate 000 of 1969. Only 1969 pieces created and sold worldwide and SOLD OUT.. All Rock Iconz statues are officially licensed, limited edition collectibles. Each piece is hand-crafted. This is a fine-arts process where each statue is hand-cast, painted and numbered. These statues are created in 1/9 scale, making the average height of each approximately 8.5” tall and each statue comes with a certificate of authenticity on the base of the statue.