Flick the switch and see the results! An inexpensive lampshade can get a 10-minute makeover with a screw punch. Here, we used a geometric modern design, but you're free to use any pattern that fits your home style.
Photography: Andrew Ingalls
Source: Martha Stewart
On the inside of the lamp shade, tape a set of diagonal datum lines measuring 5 inches apart, running from the top to the bottom rims; keep them as parallel and evenly-spaced as possible.
Using a small triangle template (prepared from a sheet of paper), trace triangles along the tape lines, using them to keep the triangles centered; remove tape.
Using the screw punch, punch out holes at the 3 corners of the traced triangle and continue punching evenly-spaced holes around the perimeter; repeat on the remaining triangles. (Tip: depending on the lamp shade material, you may need to punch a single hole a few times to ensure that it goes through the material.)