Lunch boxes in Germany

I'm cruising (literally) through Germany in a few weeks and would like to see what German bento chefs are using as bento boxes. I've got Japanese bento boxes, and Lock and Locks, and Wonder Bread sandwich boxes, but I am curious if German enthusiasts use something every day like Tupperware that I could pick up for my collection. I won't be in any major cities long enough to go shopping, but I will have free time in some smaller towns along the Rhine River.