Ever-so-slightly off-center circles in white and pale blue dress up an earth-toned lampshade. This project works best with a straight-sided lampshade, such as a drum shade, covered with paper-backed book cloth, which won't buckle when painted. Before starting, measure the shade's circumference to see if it will accommodate even repetitions of the circle template. If there is an overlap at the seam, shift it out of sight.
When stenciling, pat the sponge in a dab of paint, and blot excess on the palette. Then apply paint in thin coats, taking care that it doesn't drip or pool, until the area is covered. If a design requires several colors, use a separate sponge for each. You may opt to adjust a paint's transparency or mix hues.