Custom-made 4"x6" stencil in blue (for solid surfaces) or purple (for textiles/fabrics).
Blue is pressure sensitive and has a lighter adhesive. Purple has a stronger adhesive, but lets through a little less paint/ink. The type of stencil you use is really a personal preference. Some like only the purple and others like only blue, while others use both.
Please note there is a $5 designing fee added to each custom stencils.