After doing lots of research and watching many tutorials online, I finally decided to have a go at light painting. This was my very first attempt back in 2010 and I still can't believe it actually turned out well!
I did this by putting a paintbrush on my bathroom counter and setting up a little blue-colored nightlight in the background. I had my camera on a tripod with the shutter speed set to 15 seconds. I then turned off all the lights in the room except for the blue light and began "drawing" the lines coming from the brush with a red laser pointer.
Besides a bit of cropping, this photo has not been edited in any way.
Since I did this piece a while ago, I've done a ton more light graffiti stuff - I absolutely love this form of photography.