allnameswereout, the Summit will be taking place on your turf, which you obviously know well. Would you be able to use your knowledge of Berlin to recommend/locate a printing company that could produce custom t-shirts and stickers? I've tried Googling for a suitable company near c-base, but sadly, listening to KMFDM and Einstuerzende Neubauten during my teens left me only with decreased hearing ability, not an understanding of the German language.