I really love this idea, would like to incorporate in the stone in the basement area instead of mosaic risers - I've re thought this and think may be too overpowering. Thinking tiled risers and small pebble mosaics in floor would be much nicer.
DIY - Glow in the dark pots with mums for fall/Halloween. Buy a flower pot that you really like and use Rustoleum's Glow-in-the-dark paint to paint the pot. During the day, the paint will absorb the sunlight and at night the pots will glow.
Whether or not an empty wine bottle is transparent, it can make a great bottle light! Mark where you want the holes to be with some masking tape, drill, rinse the bottle, then stuff Christmas lights through the holes you drilled. (via Wit and Whistle)