Haha.
Irish Wolfhound, maybe. No dog breed starts with I. No good ones, anyway.
( Esme Weatherwax I swear on my tash it's daycent hash, Sat 30 May 2009, 14:00, archived)

Iguanadog

( Moon Girl Technologies horrendous beanbag, Sat 30 May 2009, 14:01, archived)

Irish Iguanadog
You have to see who can lie around on a rock in the sun the longest.
( Esme Weatherwax I swear on my tash it's daycent hash, Sat 30 May 2009, 14:02, archived)