My dad sent me a link to an interesting product from Rosco called a LitePad. According to the site:
Rosco LitePad™ is a slim profile light source that generates a soft even beam of light and almost no heat. Its small form factor and light weight make the Rosco LitePad™ perfect for use in many places where a larger, typical luminaire could not fit. Drawing just a few watts of power, LitePad is simple, fast and economical to use in film and television, theatre and live entertainment, and retail and event lighting.Ranging in sizes from 3x3 to 12x12 - either square or rectangular - the LitePad is about 1/3" thick and has a lamp life of 100,000 hours, producing a color temperature of 7,000 degrees K.
Though it is advertized for use in film, video, and stage as accent lighting or to illuminate objects/subjects in hard to light places, I could certainly see how this could be a useful addition to any lighting kit. I've looked around and haven't found a price yet but