Quick how to on the sign I made;
Went to Home Depot, got a metal sign holder (kind used for 18x24 for sale signs, it's basically angle iron), got a piece of 18x24 plexiglass, an 18x24 piece of coroplast (white unlettered), a 10 foot piece of 1x2 firing strip, some sheetmetal screw's (3/4" long and 11/2" long), a can of spray paint made for plastic (in the color you want), and a roll of double sided tape. Printed on the computer the words and numbers you see in the sign (I used the font showcard gothic), cut them out, added the double sided tape (to the front side of the letters and numbers), cut out the letters and numbers again. Measured for even placement on the plexiglass, peeled of the backing from the double sided tape on the letters and numbers, and added them to the plexiglass. Spray painted over the plexiglass and letters (in my case it was red). Take the firing strip, cut four pieces (2 will be across the long side, drill pilot holes and install the short sheetmetal screw's through the metal frame. measure and cut for the 2 side pieces, I drilled a pilot down through the top pieces and up through the bottom pieces into the side pieces and then added the long sheetmetal screws). The short side of the 1x2 will be mounted to the frame. I them drilled pilot holes in the 18x24 coroplast (9 rows by 11 rows, plus one extra) and added a 100ct mini light set. Then screwed (with flat washers for added support) the coroplast into the back side of the firing strips at the corners and centers. Done. I don't recall exactly the cost as I purchased some of the items at different times for other projects.