Art work of coal mine related equipment and tools

I need an artist to create vector art of coal mining related equipment and tools. Such as hard hat, hard hat with light, pick, shovel, lump of coal. Would like it with color and perhaps black and white. File format should be eps or other vector format. Feel free to ask any questions. Please include a link to some examples of your work. I have a small print business and will need more work in the future. Hoping to find an artist that I can work with on a regular basis.