A modded computer
Modding is a popular hobbyist aesthetic within steampunk culture. Modding involves remaking everyday items (such as appliances, computers, or vehicles) to appear as if they have come from a steampunk setting while still functioning properly. Items are often retrofitted with brass fittings, gears, fine leather, lenses, and a variety of other things. In addition to an altered aesthetic, experienced modders often alter the original object to become more energy efficient as well as more environmentally friendly.