During the briefing, Dan Black mentioned the word retro on a number of occasions. That along with their lunch-box ethos my research led me to the multi-fuctional pencil case of the 90s (image below). I chose this as my inspiration because there was a lot of excitement involved in secret compartments being uncovered.
Tidbit is a snack-box, no bigger than a supermarket sandwich packaging box, that the user fills with snacks. Once they are ready to eat, they open their snack-box and begin to prepare.