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.
\documentclass{article}
\usepackage{tikz}
\usepackage{verbatim}
\usetikzlibrary{arrows,shapes}
\usepackage{wine}
\begin{document}
\title{\LaTeX{} Wine Stains}
\author{LianTze Lim}
\renewcommand{\today}{24 February 2016}
\maketitle
\wineAm{1}{1.0}{0}{5.5cm}{3cm}
\section{Introduction}
Now you can add wine stains to your \LaTeX{} documents, too! \texttt{wine.sty} is really Hanno Rein's \texttt{coffee4.sty}\footnote{http://hanno-rein.de}, with all the `\texttt{coffee}' replaced by `\texttt{wine}' in the code, and replaced colour definitions.
You can choose from four different stain types:
\begin{enumerate}
\item $270^\circ$ circle stain with two tiny splashes
\item $60^\circ$ circle stain
\item two splashes with light colours
\item and a colourful twin splash.
\end{enumerate}
\section{Usage}
To use the package, simply place the \texttt{wine.sty} file in the directory with all of your
other \texttt{.tex} files.
Then include the following line in the header of your document:
\begin{verbatim}
\usepackage{wine}
\end{verbatim}
To place a wine stain on a page, put one of the following commands in the source code of the relevant page:
\begin{verbatim}
\wineAm{alpha}{scale}{angle}{xoff}{yoff}
\wineBm{alpha}{scale}{angle}{xoff}{yoff}
\wineCm{alpha}{scale}{angle}{xoff}{yoff}
\wineDm{alpha}{scale}{angle}{xoff}{yoff}
\end{verbatim}
where alpha is the transparency factor $\in [0,1]$. The scale factor is {\tt scale}, and the standard is {\tt scale}=1.
The angle is in degrees $\in [0,360]$.
The position relative to the centre of the page is given by x and y offs \texttt{xoff} and \texttt{yoff}.
\section{Copyright}
\emph{(The following is Hanno Rein's copyright statement:}
You can freely distribute this package as I do not believe in imaginary property. All stains are self-made, photographed by myself, processed with gimp and traced with Inkscape.
Donations should be made in coffee only. My address is
\begin{quote}
Hanno Rein\\
DAMTP, CMS\\
Wilberforce Road\\
Cambridge CB3 0WA\\
United Kingdom
\end{quote}
See more wine stains on the next pages.
\wineCm{0.9}{1}{180}{0}{0}
\newpage
\wineDm{0.4}{0.5}{90}{0}{0}
\newpage
\wineBm{0.7}{1}{0}{0}{0}
\newpage
\wineAm{0.7}{0.75}{2}{0}{0}
\end{document}