Google brings Model your town competition to add more 3D buildings to Google earth even to include small towns and villages. And Google gives you the chance to build a design of your own town/village by using google's free tools such as SketchUp and Building Maker. If your design of your town/village got more votes then you can see your design on Google Earth 3D buildings layer, the winning town will also get the money and prizes. Visit the competition website for information. There you can find the all details to get started.