This invention provides novel apparatus and methods for tattooing skin. One embodiment provides an apparatus for tattooing skin comprising a frame and a plurality of pressurized compartments for storing tattooing fluids. A user may select one or more of the pressurized compartments to dispense a chosen skin colorant contained in the compartment(s). A fluid dispenser receives the chosen skin colorant(s). The tattooing fluid(s) in the chosen pressurized compartment(s) is forced into the fluid dispenser by a pressure source in the pressurized compartment, and by a pumping mechanism coupled to the apparatus. Tattooing fluid is provided to a tattooing needle through a fluid connection coupled to the fluid dispenser and disposed at an operating end of the tattooing needle.