Alejo, espero haberte pillado la idea:
http://i260.photobucket.com/albums/i...psae85acae.jpg
http://i260.photobucket.com/albums/i...ps0159b959.jpg
http://i260.photobucket.com/albums/i...psc65d3a1a.jpg
http://i260.photobucket.com/albums/i...psf05d8bba.jpg