Several of you have asked where we got the yellow submarine. We actually got it from a Kickstarter project from an Israel-based company called Louie’s Box. The Kickstarter funded the dye to cut the cardboard and put it into production.
The last update from their Kickstarter project said that they had interest from several distributors worldwide, and that they were pursuing those, and also working on new box shapes. If you are interested in a yellow submarine, there is a contact form on their site, and we’re sure they would like to hear from you!