Packaging Prototype/Sample

This project is for the creation of a prototype/sample box (the physical box, not the graphic design element).
I have created a small unit, made from plastic, for retail sale and I need someone to help me with the development of the of a box that will hold the unit.
The unit is roughly the shape of a cylinder, and the box will need to have a cut-out which holds the unit in-place, so that it is secure during transport, but it will also need to be easy for the consumer to remove the unit from the box.
If you are willing to sign an NDA I can provide you with a complete brief.