If you have a painting business that sells different types of paints with various painting services and the paints you use for your painting services...

If you have a painting business that sells different types of paints with various painting services and the paints you use for your painting services comes from a company that doesn't contain volatile organic compounds, what example could be used to demonstrate a project that doesn't fall into a one year contractual agreement? Where the Statue of Fraud would have to be applied for a service or contract with a client?