I designed this holder to attach LED strips to the top of my LACK enclosure for my Prusa printer. However, they could easily be used for many other situations. The main goal, besides fixing it to a flat surface, is to diffuse the light coming out of one side so as to not hurt your eyes so much! The LED strips I used are "weatherproof" which means they have a small bit of soft clear plastic on the top. Without this, you would need to use some glue to keep the strip in, otherwise the holder will affix the strip without any glue needed.

This will fit on a Prusa if printed diagonally.