I honestly haven't encountered a shiny chesnaught, but I hope it looks more like Bowser than the normal kind, because I see that nickname a lot
first off....shiny chesnaught is more like what normal chesnaught should have looked like. http://media.tumblr.com/85c7295ff14eab7b24a318b8b8306274/tumblr_inline_mumlg5M5kj1rm70p1.jpg
second shiny glaceon...light blue....makes it look more icey.
i also enjoy shiny zangoose http://fc09.deviantart.net/fs50/f/2009/323/b/c/Zangoose__Shining_Coloration_by_Xous54.png --- A long time ago someone asked me why Pokemon doesn't have NewGame+. I have not heard a more valid question since. fc:0602-6823-9646, SV:932,FS:electric.