With a computer, a cardboard box, a clear surface, and a set of string lights, you can make a light box to illuminate your cozy holiday evenings with some peace and good will.
Instructable-r CreativeMan says "Having made some of these earlier, I decided to add a few more for the Christmas season. These light boxes, or signs are easy to make, very low cost (the only thing I have to buy is the lights). Lights used are mini-incandescent lamps that are low watt, low heat regular Christmas lights. If purchased at the end of the season, strings can be had for as low as $1.00 each! No "wiring" is required, just use the lamp strings as purchased. Be aware, that these lights should not be left on unattended."