Non-Modular Cubes
With Stoppers: 39

The boxes shown here are Tomoko Fuse's variation on the traditional origami masu box. This design appears in several of her books. Sometimes it is called a Cube Box, sometimes a Dice Package.
 
This type of box features triangular flaps which are tucked inside or under an attractive fastener, called a stopper, to close the box and lock it shut. Many different styles of stoppers may be used.
 
A single square sheet of paper is required for the basic box, and a smaller square or rectangle for the stopper. Adding a liner will strengthen and neaten the box.