Designer Jonathan Sabine and art director Adam Pickard are the team behind Chromoly's new Ninja Tacks. These thumbtacks are designed to look like throwing stars that have pinned your important papers. There is no escape. The Ninja Tacks are made of injection molded ABS plastic with a chrome finish and the pins are stainless steel. Thumbtacks are essentials in every office, so why not have some fun with them?