One day at school, I was bored, and I happened to have a knife un my binder. (just happened to have? HA!) And I used the screwdriver on it, and took apart my calculator. It had 2 LEDs in it! So, when I got home, I took them out, and it still works fine! Just earlier today, I accumulated another calculator that I was supposed to give someone who I didn't even know. I took it home, and took the LEDs out of it, and IT still works fine!
The calculators I got these LEDs from are called 'Texas Instruments' just for those who wanted to know.
Anyways, they are nice, small LEDs, and would be PERFECT for underglow lights on a bit. Just thought I'd take a couple pics of em too, just for good measure