I tried printing it out on a transparency and it didnt turn out too well. I tried it with my blue cold cathode and too much light shined through and you could hardly see the picture. I have sratched that idea and I opted to do something with plexi glass, leds, and some etching with a dremel.
Ive considered etching a small AMD and Nvidia logo in the bottom corner of my window and lighting it up with some nice bright blue leds but it would probabley show up all the scratches on my window