% to view this document: latex foo.tex && xdvi foo.dvi
% to convert to postscript: dvips foo.dvi -f > foo.ps

% This document is meant in good humour.
\documentclass{slides}
\begin{document}

% define some handy font types
\newcommand{\R}{\fontencoding{OT1}\fontfamily{pcr}\fontseries{b}%
\fontshape{n}\fontsize{36pt}{36pt}\selectfont}
\newcommand{\T}{\fontencoding{OT1}\fontfamily{pcr}\fontseries{b}%
\fontshape{n}\fontsize{72pt}{72pt}\selectfont}

% front of shirt
\flushright{UN*X is cool}
\eject
% back of shirt
\centering{\R{cd /pub ; more beer}}
\end{document}


