\begin{Form}
    \fbox{\CheckBox[width=10pt,height=10pt,bordercolor=1 1 1]{\null}} 0 Euro \hspace{1pt}
    \fbox{\CheckBox[width=10pt,height=10pt,bordercolor=1 1 1]{\null}} 5 Euro (empfohlener Beitrag)\\[0.1in]
    \fbox{\CheckBox[width=10pt,height=10pt,bordercolor=1 1 1]{\null}} Einen Betrag von \fieldinline{things}{4cm} Euro.
\end{Form}