Because I am insane I propose a challenge, keep in mind I will be / already am doing it. The challenge is leave playing one of these links on each day while at work, assuming you work in an office or in some 9-5 fashion. There are different 10 hour videos posted on youtube!
Monday: Taking the Hobbits to Idsengard
Tuesday: I got a jar of dirt
Wednesday: Song of Storms
Thursday: Pokemon Bike Theme
Friday: Diggy Diggy Hole