Mark's Fireworks Mark's Fireworks is in the business of selling the highest quality fireworks at the lowest possible prices. Our exclusive Really Good Stuff family of fireworks brands has been entertaining families and groups for over 20 years. When you walk into one of our stores located throughout Indiana, Kentucky, and Illinois, you will be greeted by a Mark's associate that has extensive product knowledge and the ability to build a custom show for ANY budget. The best choice for fireworks is Mark's Fireworks and the The Really Good Stuff Brand Fireworks!