This is based on lukeinthegarage's model Lunchbox by Luke! 

I always wanted a NASA lunchbox as a kid and now I can have one exactly like it. Per Luke's description:

Some of the pins are tough to press in, I use a tool to help with that but they all fit. I just don't want anything falling out. 

Printing is pretty straightforward. Only the bottom half needs supports. If you use my print settings you will be fine.