Cool. Just like living in one of those heat sensitive panels. Using technology perfected by Moving Color, the heat-reactive tiles are custom designed for specific ambient temperatures. When the temperature rises above that point the tiles bloom, cycling through a rainbow of colors, and then cycling back through this rainbow as they cool. The heat-reactive tiles, opaque and translucent, are available in a wide range of palette-coordinating and ever-changing colors, and combined with the many textures available, can add color, feel, and
motion to almost any environment. UltraGlas

i saw these on 'i want that' and would get them in a second- if they werent so damn expensive!