I don't know if US sausage and chese will compete with what's available in Germany (it's otherworldly over there
). Maybe you can send some authentic Rhody "weiner" sauce that seems to be so popular locally to put on some german wurst. Or maybe some real local sauces that remind of home. But some things that you can in no way get over there - copies of favorite TV shows on DVD video - Swapping movies and shows is very big over there because AFN TV can't play everything. Movies are big and shows Like the Sopranos. Also BIG is football games and maybe the Sox run to the world series... That 3 Games to Glory video on the Pat's Superbowl might be big if he was over there then...
The biggest thing is finding what is rare and expensive over there but readily available here.