This stencil roller is so handy!

"New Oneshot® Stencil ink roller marking system is ideal for any letter, number or custom stencil marking solution. All you have to do is attach the ink cartridge to the roller head, pump the trigger and you have a neat and efficient marking system. The roller assembly features a durable neoprene roller. The valve-action pump as shown in the photo controls the ink saturation."

You can also buy replacement rollers and paint cartridges when you need them!