There is this video of r9k and pol messages mashup playing over some sad music (I think it's the sounds of silence by simon and garfunkel), these are suicidal or so called "sad messages" like for example "I gave up today" or something of that nature
want to make an uplifting mashup (an antonym video with uplifting posts under beach boys song or something of that kind) just need the original vid as a reference, I think it's often gets posted on aforementioned pol and r9k