Amid a long series of unexecuted orders of Napoleon's one series, for the campaign of 1812, was carried out--not because those orders differed in any way from the other, unexecuted orders but because they coincided with the course of events that led the French army into Russia; just as in stencil work this or that figure comes out not because the color was laid on from this side or in that way, but because it was laid on from all sides over the figure cut in the stencil.
Perhaps you'll stumble upon a stencil that inspires you to one day create the permanent image you'd like, but the beauty of temporary ink lies in its ability to fade just as you change your mind about having a tattoo.
Obviously, a kit will cost more than just a simple stencil, but in the end, you save time and money because you don't have to go out and purchase your supplies and risk purchasing the wrong paint or paint color.
Adding a second overlay means waiting for the first layer to dry, and then positioning the stencil directly over where you had it last time, and adding the second overlay (usually a different color of paint).
Think of it as the frame work for your eventual masterpiece.Your tattoo professional will use the stencil to make a temporary tattoo on your skin, which serves as a template to be filled in with permanent ink.