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.
Step 1: First Cut Acrylic or Glass for the Front of the Sign
I have a lot of picture frame acrylic and glass that is no longer used for pictures, so I use this instead of buying some new material. To cut acrylic, a special tool is available, but can be cut by scoring with a craft knife or box cutter and snapping on the line. For glass, a glass cutter is needed.