This is not related with engraving but it is art called Ebru and maybe you like it.
They transfer these drawings on to the some materials such as paper, fabric etc. All of them are unique, can't produce same again.
[video=youtube;0IVwttU8ons]http://www.youtube.com/watch?v=0IVwttU8ons&feature=relmfu[/video]
[video=youtube;eJFqSGX2vHs]http://www.youtube.com/watch?v=eJFqSGX2vHs[/video]
They transfer these drawings on to the some materials such as paper, fabric etc. All of them are unique, can't produce same again.
[video=youtube;0IVwttU8ons]http://www.youtube.com/watch?v=0IVwttU8ons&feature=relmfu[/video]
[video=youtube;eJFqSGX2vHs]http://www.youtube.com/watch?v=eJFqSGX2vHs[/video]