A picnic hamper.
Hamburg, is one city in Germany that has a name that sounds like a popular picnic food. Another city in Germany with a popular picnic food name is Frankfurt.
It's called either a picnic basket or a picnic hamper.
flask
Hamburg
That could be a gas tank or a gas can...
Dewar flask
Hamburg, Germany, sounds like the popular picnic food, hamburger. Frankfurt, Germany, sounds like frankfurter.
folder, envelope, box, briefcase, filing cabinet, a safe, ...
Thermos is a trade name for an insulated food and beverage container
Thinking... Ah yes. Watermelon, Germany.
Picnic
cornucopia