Well, I did this again, and this time I was able to get a hold on some surface mount LEDs. Green ones
In all reality, this has been somewhat of a new experience for me, since I have next to zero experience with soldering of any kind, besides what I've seen other people do. Anyway, I got these placed on my second controller, and being a beginner at this stuff, it was fairly difficult until like the last 2 leds. They're a bit dim, as was explained before. In my next attempt, when I get another controller, I'll try a different color, and the most recent method to make them brighter. Heck, I may try to fix this one later too.
here's the final product (for now):