I'm about to poke a bit of fun at Hero Forge here, so in the interest of fairness I'd like to say that I've been downright impressed by the amount of customisation it's offered recent years.

Hero Forge, purveyors of 3D-printed custom miniatures, are taking things a step further with a new line of customizable dice, suitable for Dungeons & Dragons, Pathfinder, and other tabletop games.