At some point, we're going to reach a point when there will be no more mash-ups left to create.
The law of big mathematics state that we will eventually reach a point where we can no longer cross over pop culture with pop culture. However, until that moment comes, people out there are going to be crossing stuff over like it doesn't even matter.
Case in point, this video slicing the various droids from Star Wars into the intro of Friends. Who asked for it? Probably nobody, but who cares.
We're here and it's funny. Take a look.