I designed this super simple strip LED mount which just bolts onto the mounting holes of a 40mm fan. Works with nearly anything and gives you 3 x SMD LED's. It's bright, has a wide angle and works great.
I use a generic self-adhesive LED strip, they cost about $3 a segment and wire them from the 12V rail of the power supply. You could wire it directly into your RAMPS setup too if you wanted, or back to Panelolu box and puit switches and stuff on it.
Because you can mount this mount anywhere on a 40mm fan, you can put 2,3 or 4 of them around the fan. So it's super flexible.