Making a License Plate light
After making a back and vertical support for the LED I added a piece of square stock to one end. What I neglected to get a photo of was the round tube I had cut a window in to allow the LED to shine through and then I split it long ways to slide over the vertical support. I then glued a matching piece of solid square on the other end basically sandwiching the tube between both end pieces. I then filed/sanded the plastic to shape.