I was thinking about making a 'life size' version of this pattern here http://wolfdreamer-oth.blogspot.com/2010/08/umbreon-plushie.html (WolfDreamer's Umbreon) as a surprise gift for a friend.
The original pattern version I made is 7 inches tall at the tail, 6 1/2 inches at the ear, and 3 3/4 inches at the shoulder.
The 'life size' Umbreon should be about 3 feet 3 inches at the tallest point - which in official pictures looks about the tip of the ear...
I have no idea on where to start - hook size? bulkier yarn? massive increases and decreases?