For the time-obsessed person on your holiday list:
Wall Projection Clock
Celebrate the intangible nature of time with this projection clock, which creates a large clock image on any wall surface. Discovery Channel Store ($129.95)
A little philosophy thrown in with a sales pitch, anyone?
Distorted Wall Clock 
Made in the surrealistic tradition of Salvador Dali's famous Persistence of Memory. Fluid lines of the shiny, brushed aluminum, wooden frames contour and bend around the gold-tone inner trim. Touch of Class ($199.00)
This one is screaming at me to say something profound, but I digress...
Sonic Boom Clock
Guaranteed to wake up even the heaviest sleepers. When the alarm goes off, the user can select to wake up to any combination of loud pulsating audio alarm, flashing lights, or shaking bed (vibrator sold separately). Amazon.com ($37.00)
Not sure about you, but waking up to an apocolyptic onslaught of sensory stimuli wouldn't put me in my happy place to start the day. And yes, I am holding my tongue.
ChronoArt Clock
Chimes, color, light, and time combine into an ever-changing functional work of art. This wall clock uses a series of multi-colored lights and a system similar to the binary clock to display the time of day. Entertaining and unique, ChronoArt clock features a face that changes every single minute of the hour, and a chime which announces every hour.
If anyone knows the actual time on this clock, leave it in the comments. I'll consider a clock vibrator for you for Christmas.
Wall Projection Clock
Sonic Boom Clock
Okay, I have absolutely NO idea what time the ChronoArt Clock reads. None. But I'd LOVE to know. L.A.? Anyone??
Okay, is it 9:03 and 26 seconds or 9:26 and three seconds? A clock like this could make you seriously late. Does anyone want to think this hard when they look at a clock?