If you're planning an old school Sesame Street disco pinball machine/Pointer Sisters theme for the kid's nursery--and who isn't? look at all the possibilities down there--brother, has Thydzik got the DIY clock tutorial for you. [There are even cleaned up pdf and Illustrator files for the face and hands]

Never mind that babies can't tell day from night for the first six months, or that they can't grasp the concept of time and non-instant gratification for the first, uh, how long does that take? We're at three years and still counting.

Custom Clock, Sesame Street Pinball Counting Design, by Thydzik [instructables via makezine]
Previously: "Jazzy Spies" nursery, perhaps? Or just to watch
Sesame Street 4-armed counting yogi now complete, also in Spanish