This mosaic was created for BrickFair 2012 at the Dulles Convention Center. I used what I believe to be a unique technique of stacking 3 1x1 rounds, primarily translucent colors (red, yellow, blue, aqua, and clear). Stacking these colors gives a potential of 125 color combinations, though many of the combinations are too subtle to notice. I probably used 50-60 different combinations. Size is 96 x 96 studs (in frame, approx 33" x 33"). 25,000+ Legos used.