The models apparently already exist, give'em a flame breath weapon, rolling attack, traditional bite or whatever else seems new but familiar and you're set for another boss.
Throw water at them from a single source to attack temporarily or not if you feel that's ripping on Snarby's thing too much I'm not picky,
I just want them to be introduced regardless, as a boss, mini boss or rare.
Okay, first of all: Stop, back up, and repeat what you just said. I can barely understand that you're suggesting that they put in a Vog variant of Wolver, and even then, it's only cause I'm used to people talking like that on this game. I mean no disrespect, but it helps if you explain what you're suggesting, not just saying; "The models apparently already exist-...(etc.)" and assuming everyone knows what you're talking about. ;)
Also; "Throw water at them from a single source to attack temporarily or not if you feel that's ripping on Snarby's thing too much-...". This is not a Snarbolax exclusive type of thing. It's used for every boss except the Jelly King. Snarbolax you have to stun using the bell. Vanaduke, in certain stages, you have to throw water at his mask to be able to attack him temporarily. And the Roarmulous Twins, you have to make them shoot each other with their rockets (no easy task in later stages where they move) so you can deal damage to them.
On the whole, i agree with your idea. It seems lame to me that they have a Voltail, but no Voltail Coat(as a matter of fact, the Dusker Coat looks like a Voltail, so, I think they totally messed up on that one), there's a Dusker Coat, but no Dusker (previously mentioned), and there are Vog and Skolver Coats, but neither of them are actual enemies. The reason this stuff should have an actual beast for it, is because the Wolver-line coats are ANIMAL pelts. That means they had to come from an animal hide, and be made into the coats. If Dusker is supposed to be a pelt from Voltail, it makes sense it would have Shock resistance, which, it's quite obvious that it does not. The model for the freezing and fire Wolvers is almost exactly the same, and it looks like an Ash Tail. Ash Tail should have it's own attacks, and make fire and freeze inflicting Wolvers be a separate type. However, they didn't do that, which makes it look like that part of the game wasn't very well planned, or was thrown together hastily. (Proof of this entire paragraph I just said is right here: http://wiki.spiralknights.com/Wolver . As you can see, there is no Dusker, no Skolver, and no Vog Cub. Fire and ice inflicting Wolvers are listed as Frostifur and Ash Tail.)