\documentclass[a4paper,10pt]{letter}

% common stuff
\input{header}

% background picture
\renewcommand{\emblem}{%
  \put(55,  10){\includegraphics[width=40mm]{graphics/emblem_physicist}}
}

% physicist badge: larger text
\renewcommand{\badge}[3]{\ticket{%
    \put(52,40){\makebox[0mm]{\bfseries \Huge #1}}
    \put(52,33){\makebox[0mm]{\Large #2}}
    \put(52,26){\makebox[0mm]{\Large #3}}
    \emblem
%     \branding
}}


\begin{document}

% can generate this part from a database / table!
%	name		language(s)	(expertise - not used)
\badge{Audrey}	{}	{\fr, \nl}
\badge{Catherine}	{}	{\nl, \fr}
\badge{Christoph}	{}	{\en}
\badge{Daniela}	{}	{\en}
\badge{Giovanni}	{}	{\fr, \en}
\badge{Ioana}	{}	{\fr}
\badge{Isabelle}	{}	{\fr}
\badge{Juanan}	{}	{\fr}
\badge{Katie}	{}	{\en}
\badge{Koun}	{}	{\en}
\badge{Krijn}	{}	{\nl}
\badge{Marleen}	{}	{\nl, \fr}
\badge{Nadège}	{}	{\fr}
\badge{Nick}	{}	{\nl, \fr}
\badge{Pablo}	{}	{\nl, \fr}
\badge{Paul}	{}	{\nl, \fr}
% \badge{Pragati}{}{\en}
% \badge{Sebastian}	{}	{\fr}
% \badge{Simon}	{}	{\nl}
% \badge{Simona}	{}	{\fr, \nl}
% \badge{Stijn}	{}	{\nl}
% \badge{}{}{}\badge{}{}{}		
% \badge{}{}{}
% empty badges for the whole IIHE:		
% \blankpage		
% \emptypage
% \blankpage
%\emptypage
% \blankpage
% \emptypage
% \blankpage

\end{document}