With us now supporting qualified signatures, we should look into adding / testing support for DINSIG cards. Apparently they can be obtainted for the german DGN and as such might be popular in Germany. So maybe we can get a testcard from there.
From the gnupg manual:
6.3.3 The DINSIG card application “dinsig” This is an application as described in the German draft standard DIN V 66291-1. It is intended to be used by cards supporting the German signature law and its bylaws (SigG and SigV).