I just finished my kitbash of a church from the top two modules of the CMR Fyfe Building which is a laser cut acrylic kit and posted photos in Weekend Update. My structure begged for stained glass which I captured on the web, sized and printed on clear stock. The only problem was without a light source the windows just looked dark.
We were grocery shopping at Meijer (a regional Target-like store) and I wandered into the hardware department looking for something like those round stick-up lights. Instead I found a two pack of rectangular stick up LED lights. The good news: $8.00 for the two pack. The bad news: at 7 inches long they were too long for my church. The OK news: at $4.00 each I wasn't afraid to take it apart and start hacking it up.
A few minutes of work with screwdriver and rail nippers got it down to a usable size.
Testing showed a nice even light if I hung it from the ceiling except that the LED closest to the stained glass over the front doors looked too hot. I first colored it with an orange marker which helped with intensity but created a weird orange glow.
Instead I bent the LED away from the window and scraped and sanded off the orange tint which resulted in a frosted LED with the right intensity and no weird color.
I needed a way to hang the unit from the ceiling while still having access to the backside to change the three AAA batteries when the time came. The solution was to install Evergreen strip supports and lay the unit on top. I have left the top of the building loose so that I can get to the on-off switch and the battery compartments.
A couple closeups of the windows.
Not elegant engineering but cheap and effective.