Established in 1989, Serious Signs & Specialties is into manufacturing of signs and promotional products. Based in Phoenix, Ariz., it has the capability and expertise to customize garments with logo as well as design t-shirts polo/golf shirts, caps, visors sweatshirts, aprons and more. In addition, the firm produces various types of signs, such as full color digital posters/banners, cardboard, foamcore, vinyl banners, plastic, plexiglass, magnetic, vehicle signs and store front lettering. Some of the promotional products offered include pens, pencils, magnets and mouse pads.