Accidents will happen.
I was goofing around with the macro setting on the camera (which I only recently realized was there) and took this shot by mistake. It is an image of the top of a glass of red wine from about three inches away. The glowing finger trick is merely my finger over the flash. Pretty cool huh?
This is the same type thing only this time it was premeditated. I was explaining the wine shot and took a picture of my Pabst at the bar as an example. Obviously the Pabst is not opaque enough to reflect the right amount of color back but it still had a neat effect. You can see clear to the wood grained bar top.