Bonsai Kitten was an internet hoax that claimed to give instructions on how to grow kittens in bottles as a form of decoration, similar in fashion to a Bonsai tree. Soon after birth the kitten is supposedly placed in a glass container, allowing the kitten to grow to fill the vessel that contains it.
The kitten allegedly breathes through specially drilled holes in the glass and may be fed and expel waste through tubes, and their purpose is supposedly as an elaborate ornament, instead of a pet. While the website is no longer online, mirrors with copies of the website content exist and are generally referred to.

website:http://www.bonsaikitten.com/

if you wanna vote to stop this cruel "fashion" and shut that site down here's the link: http://www.petitiononline.com/J1A2D3E4/petition.html