Specialty inks we don’t have to mix custom (metallics, glow-in-da-dark, fluorescents…) usually cost about 25-50 cent more per shirt, per ink. Inks we have to custom mix (puff, suede, discharge…) usually cost 50 cents to a buck more. Keep in mind that some inks, like glow-in-the-dark require a white underbase to be visible. If you’re feeling particularly particular and you want us to match an ink to a pantone color, no problem. We’ll do it for a one-time fee of $20-30, depending on the type of ink.