You do realize Tom's Hardware is a tech forum, right?
So, are we talking about a piece of tech or hardware, e.g. a Gerber hunting knife or a pair of Sennheiser headphones from the respective factory outlets? (Not exactly cheap souvenirs, but not horribly expensive either.)
Or do you prefer something edible, e.g. some regional sausage speciality? (Probably the least expensive souvenir.)
Or would you be comfortable with a pair of genuine Lederhosen from Bavaria? (Probably the most expensive souvenir.)