This one's a little complicated so I'm going to let the text on the Plushpod
site (where I found this) speak for itself:
"Love letter is a series of lighting sculptures which emit soft ambient lighting through the use of an electroluminescent film suspended within a translucent envelope. Using a dry erase marker a message can be written directly on the film, which will then glow like candlelight as the surrounding light darkens. If desired, a thin object such as a leaf can be inserted into the envelope to create a different effect. The position of the light source, the suspended electroluminescent film, can be adjusted to create a greater or lesser bow in the support wire." whit
That's exactly what I was going to say! The base of the light can either be a felt "rock" (i.e. a lot of felt compacted together) or "a white marble cylinder that is an actual core from the making of the marble base of the Arco lamp, designed by Achille and Pier Giacomo Castiglioni in 1962." Whoa.
But the coolness does not stop there...nope, no sir! Get this: "The power source to the film is low voltage (DC 12v) allowing to display the inner workings of the power inverter as a mini city scape, rather than hiding this part away in a black box." Follow the link to Plushpod's sites for a picture of this wonder.
Runs $450 with the felt or $390 with the marble, although shipping is free.