Who wants plain plastic light plates? Not me! I covered every single one in my house, and even made ones that went with the theme of the room. The Sky's the Limit!
Need (for one):
1 plain light switch cover (remove from wall or buy at hardware store)
desired decorative paper, could be anything - magazine clippings, etc
Elmer's Glue or double stick tape
X-acto knife (or scissors)
Mod Podge & brush
First, lay out your design over the light switch cover and line it up so it looks good to you. Leave 1/4" overhanging so that you can wrap it around.
Center the plate in the center, and make a diagonal cut on each corner of the paper. This will facilitate wrapping so it doesn't bunch up and make wrinkles when you glue down.
Next, brush glue over paper (alternatively, you can lay paper on double stick tape and use X-acto to cut out, then peel off backing and stick to light switch). Once you have covered it with an even layer of glue, center the light switch cover in the middle and then immediately fold over the edges, one at a time, until the whole thing is covered in the paper.
Next, using a blunt pencil or the screws that came with the light switch, pop out the holes. Now you are ready to give it a final finish using the mod podge. Brush an even layer over the surface of the paper, making sure it is completely covered and let dry for about an hour or so. You can also add glitter or sequins while the mod podge is wet if you desire.
The last step is - once the mod podge has dried completely, use your X-acto to carefully cut out the switch area from the back side.