Here is a life-sized Pikachu (Based on the Pokemon video game) made out of Lego. Slightly sharper and less fluffy then a real one. That just means you need to hug it more. Alanboar created this Lego Pikachu out of 3,000 pieces. It could have been more pieces, but this MOC is hollow inside. There are only five colors used; yellow, brown, black, red, and white. This limited palette keeps the cartoon quality that has made Pikachu so famous. In order to get the proportions and design correct this Lego Pikachu was first sketched out on paper. While it is holding a Pokeball; Ketchup may be a more fitting prop.
Not everyone has 3,000 or so yellow Lego bricks. In that case there is a mini version of Pikachu that used a fraction of the life-sized model. The mouth and nose area is simple, and a perfect detail.
Check out this Lego Pikachu over here: http://lego.alanstudio.hk/moc-pikachu.htm
UPDATE: Check out the Giant Lego Pikachu MOC over here: http://legogenre.com/giant-pikachu-says-hello/