I don't know about the rest of everybody, for It's all drywall where I am, for interior walls.

This Idea is more aesthetic than functional. It is an analog or digital clock that is built into the wall. It is installed into the drywall before being painted over with everything else. On the analog clock, the hands sport LED's that light up and (hopefully) shine through that thin layer of paint, giving you that eerie, lord of the rings kindof "glowing writing on the wall" kind of effect.
-- twitch, Apr 22 2007

wall clock http://www.engadget...isplay-information/
time set in concrete [xenzag, Apr 22 2007]

random, halfbakery