Autographs from participants in Mixed Martial Arts depend on the popularity of the athlete, the accomplishments of the athlete, and whether or not the autograph is on a piece of equipment associated with MMA, or on a piece of paper. Assuming the fighter is high-profile, his or her signature may be in high demand, and its value driven up. Autographs on pieces of paper will bring lower prices than those on equipment, and signatures on the equipment fluctuate depending on the historical significance of the event in which the equipment was used.