Make him a care package. Maybe a handmade card with a silly picture on it. Also, I for one, and a lot of men like T-shirts. It could just be a nice blue t-shirt with nothing on it but it would look nice on him. Then he can go to Germany looking good. But you shouldnt buy him anything expensive. oh and you can buy him a book in his subject of interest. but if its not too mushy and appropriate for your relationship, a nice homemade card is always best. It HELPS compensate for the Dear John letter that you may send him later, hehe.