Barcode Alarm Clock - Alarm clock that won't stop ringing until you scan a barcode
ClocX - ClocX - freeware analog clock for Windows desktop with many features like calendar, alarms, skins, antialiasing and transparency.
Wake N Shake Alarm Clock - Wake up with a jolt of energy ready to get shit done.
LClock - Longhorn systray clock program
Toonie Alarm - Want to wake up on time and make your day brighter? Fancy getting rewards waking up?
DS Clock - Keep your time synchronized with Atomic Time servers, using customizable digital desktop clock with westminster chimes.