A single stencil provides a complete image when painted with one stencil. The image appears with small spaces between the elements of the design. Use multiple-layer stencils, also known as overlay stencils, when you want to achieve an authentic, hand-painted look. For an example, if you use a two-layer stencil set, such as an image of a person, the first layer will provide the basic outline, while the second stencil placed over the first painted image will provide greater detail, such as eyes and other facial features, without spaces between portions of the image.
Tape the stencil in place on the furniture piece with painter's tape. Dip a stencil brush into paint and swirl the brush on a paper plate. If it doesn't feel dry when you touch it, remove excess paint using a paper towel. Using the tip of the stencil brush, apply the paint to the open sections of the stencil while twirling the brush in little circles. You want to fill the openings completely. Alternatively, tap the stencil brush repeatedly on to the surface for a stippled effect. Before removing the stencil, check for clean lines by removing one corner of the painter's tape and lifting the stencil.
For a simple stenciling technique that doesn't require paints and paintbrushes, you can use paper doilies and a fine-point, colored marker. Color the openings of the doily with the marker instead of paint. The result is an impressive, ornate pattern. You can also trace around the outer edges of the doily for a more contained look. Use the same doily on several pieces of furniture in the same room for a coordinated look.
Embellish your stencil work by adding beads, tassels, upholstery trims, lace, buttons or decoupage. Alternatively, combine stamp-and-ink designs or freehand painting with your stencil designs for personalized and unique pieces of furniture. Apply a coat or two of water-based sealant in a satin finish to protect your stenciled designs. Avoid oil-based varnish as it tends to yellow over time.