![Knocker on Chocolate Color Door at El Raval Quarter, Barcelona [enlarge]](http://farm2.static.flickr.com/1315/756887946_e65d9df970_o.jpg)
Door knockers may adopt different shapes like hands, animals, flowers, weapons, etc. Imagination has been particularly rich in the creation of these simple artifacts that prevent people from breaking their knuckles when slamming on a big door. I wanted to show you this hand I found at El Raval quarter covered in thick chocolate color paint. I liked the light on the smooth surface so I thought you might like it as well. Here is a good link to more images of knockers I found at a stock photography site (I am trying hard not to play on words, believe me :)
