Source : Wikipedia
Sony has discontinued the manufacturing of Aibo as of March 07 but you can have your own paper AIBO at home with this papercraft model from Robosquare. This papercraft consists of 2 pages to cut-out and a page of instructions. The website and instructions for this papercraft is in Japanese but the graphics are very straight forward so you wont have any trouble constructing it.
AIBO is available in Black or White papercraft models in PDF format and the finished model measures around 3.5" tall and 4.5" wide. You can also find previous Robosquare posts here (PINO) and here (ifbot).
White AIBO Robot Papercraft
Black AIBO Robot Papercraft