About this 3D model

This is a Swiss Army Style Utensil Set. I have seen these made professionally in stores and i thought it would be a viable item for 3D printing. By making this into a 3D printable item, the amount of resources is greatly reduced creating a cheaper more eco-friendly tool. My hopes for this item are to create a cheap and reusable tool that could be used to reduce costs in the Military and also create a cheap tool that could be donated to third world country's. I designed this using Autodesk 123D application. This is a free program and can be downloaded from http://www.123dapp.com/design . I have attached all my design files so feel free to tweak or improve the design. To do: Add a locking mechanism, Eliminate the need for hardware (PLA rivets?)