We got ours here:
Custom Signs | Wildwood, FL - SIGNS by Jackie
But we had a $50 gift certificate given to us by the Villages Real Estate rep when we bought our house. I don't know if any other companies offer better or for lower cost. Our sign was made perfectly, and I think it's acrylic, not metal. Warning: make sure you remove these signs when there's a hurricane warning. They're thin enough to be deadly if they fly around in the wind.