Picked up a neat lighting trick from Dexter, wanted to share it with you guys.
If you want to make it look like a lamp is in a room with a character and is supposed to be one of the only sources of illumination, you can take a toilet paper roll and cut it to the right height, cover it with white paper, and then wrap/tape plastic wrap around it. Now when you aim a strong spotlight/pinspot at the lamp, it will appear to be lit from within once you expose for it and then light the rest of the set dimly, allowing the lamp effect to be the brightest light source in the scene. This is similar to the way Dexter's victims are always wrapped in plastic with a strong, direct light source aimed at it. It seems to glow...I had a real light in there, but it melted all the clay around it (half the set). This gives the same effect without the heat or need to get special practical (LED) light sources. The only tweaks in the second image were saturation reduction and exposure adjustment. The effect is entirely in-camera. It can be enhanced by smearing petroleum jelly on plexiglas and placing it in front of the lens. By turning the polarizing filter I have screwed to it, I can make the light rays "spin". Might be useful for a dream sequence or something. You could also wrap a puppet in plastic wrap and make it glow the same way. The technique is the same, the possibilities are endless.