You Will Need:
A craft knife (one where you can easily snap off the blade to get a new sharp one is ideal). A cutting board or piece of card on which to cut the stencil. A piece of acetate or stiff plastic, see-through is easiest. A printout of the stencil design (you can enlarge or reduce this on a photocopier). Some tape (ideally low-tack so your stencil doesn’t get sticky).
Preparation for Cutting a Stencil
Use a few pieces of tape to secure the printout of the stencil design to the piece of acetate along the edges so that it doesn’t slip when you start cutting the stencil. Position the design so there is a border of acetate at least an inch (2.5cm) around the whole design. Begin cutting along the longest, straightest edges of the stencil design as these are the easiest. Your aim is to cut each line once only, so press firmly and smoothly. Use your free hand to stop the acetate and stencil from moving off the cutting board, but keep your fingers well away from where you’re cutting. Once you’ve cut out the whole design, tidy up any rough edges (so paint doesn’t get caught up in these), and your stencil is ready to use. It’s time to get your stencil brush out and start painting.