jabal over 10 years ago seem to be an official art by Amaduki but I failed to find it in danbooru and moe.imouto
mindmap over 10 years ago this is offical art! it comes with the leaf amusemetn vol 5 limited edition
mindmap over 10 years ago i found this image on google..lol did not notice photoshop outline...i guess somebody took picture of item?
theconcept over 10 years ago here's a better image of it: from the samples:http://image.blog.livedoor.jp/g109092/imgs/f/9/f959dc0d.JPG