Where in Germany can I buy an authentic German Coo Coo clock ?

I recommend a day trip to Titisee. It is in the heart of the black forrest and you got there one shop to the other that sells original coo coo clocks. I was there with my friends from San Jose CA and they were very happy to buy their clocks their. I attached also a link with some web cams of Titisee so you can imagine how it looks like their. Avoid to go there on weekends since it is overcrowded with tourist of all over the world.