It was bound to happen. Now besides coffee stains, you can also add wine stains to your LaTeX document!
wine.sty is actually Hanno Rein's coffee4.sty, with all the 'coffee' replaced by 'wine' in the code, and replaced colour definitions.
This package provides an essential feature to LaTeX that has been missing for too long. It adds a coffee stain to your documents. A lot of time can be saved by printing stains directly on the page rather than adding it manually. You can choose from four different stain types.
Hanno Rein, Evan Sultanik, Luis Randez, Adrian Robson