From threads that are popping up semi-regularly on 4chan's music board. Each person picks a charted section of an album cover and draws it in MS Paint, then the pieces are put back together. This one's In the Aeroplane Over the Sea by Neutral Milk Hotel.
Let's be fair. Enema of the State is 13 years old, and she's aged pretty gracefully. Plus, the album cover image was almost certainly airbrushed and retouched. But still, WHAT IS THIS THAT TIME HATH WROUGHT?
The music board on 4chan have their own formula for generating imaginary albums. These are only a fraction of what they've come up with recently. Each one is GUARANTEED to be too obscure for your friends to have heard of before! Feel free to take a stab at creating your own.