Hello there! Welcome to the Cove!
Is this project for a class? Is this an undergraduate/graduate class? The reason for asking is try to determine what scope the project will be.
What exactly are you interested in? Do you want to see a project that has been implemented, or a project that could be implemented?
If you have access to journals, I recall seeing several Six Sigma projects in them. They list what they did, how they did it and all. International Journal of Production Research and International Journal of Production Economics are two that had articles in them.
Also, there is a lot of ambiguity in exactly what constitutes an SME. You might want to identify a particular area. Small businesses (1-200 people) might be a good area.
I guess once I know what your scope is and what you are trying to do, I might can suggest a few more things to you.
Again, welcome!