The Lunch Man and Lunch Tunes lunch boxes were basic kids lunch boxes with one striking difference; They had built-in radios and headphones.
Unfortunately, they were AM radios at a time when Top 40 radio in the US had largely moved to FM. (They still had several AM Top 40s in Canada until the early 1990s.)
And it's doubtful many teachers or school lunch ladies thought these were a good idea either...