Iz you havin a laugh m8?
Found it in the most recent UAT patch's files. Thought you'd like to know considering you asked for them a long time ago.
SteamLibrary\steamapps\common\Warhammer 40,000 - Eternal Crusade\EternalCrusade\Content\UI\ImageAssets\loadoutIcons\Appearance\Fangs
That should be the filepath if you update to UAT. It's the file called ORK_XX_Fangs_Standard10.png
Oh I see, I had heard they had a model but weren't going to release it for reasons. Squigar Confirmed?
Well it just popped up today and I'd never seen it before so perhaps it is