I'm hacking together custom Furycrafting powers, and I could post an example of the basic rule structure along with, say, Windcrafting, but, well, they're sort of terrible. And they're absolutely not balanced against all the other Powers, because I built them specifically for a Codex Alera game.

Should I post them?

I think the answer there is: Why not? We are kinda' geeking out about this already. The more ideas we have to look at the better.
No two suggestions so far have been that similar so I'm really curious to see what else could be done to model this stuff. Especially since we seem to have widely divergent ideas about power levels around here. Which is pretty useful.
Ohh, were talking Alera as the base setting so why not have a zero or one point power for Alerans allowing them to do the kind of basic effects a channeler could do without stress in one element? The "Yup, I can Firecraft. See, I can light a torch that's covered in pitch already" effects.
Oh and what about the Marat? Echoes and an inhuman level power? Then you need to use minion rules for the...the is a Marat word and it's escaping me.. animal companion? Or maybe Mimic Ability but that's kind of pointless when you can't trade it out. The science-nerd in me says they should be human-ish. Or at least closely related.   

I did some of the work converting DFRPG to Codex Alera a few years ago. I broke down each of the furycrafting elements into a separate sponsored magic. Since there was no evocation available applying the discount for further elements to any after the first. They all have their own built in limitations and all associated powers would have that limitation applied too.
Probably removing the limitation on refinements to foci and allowing the base  foci slots to be spent on integral refinement. That would allow for your basic Aleran peasant to have furycrafting without a bunch of the associated powers dirt cheap. (In the 2-3 Refresh range, Air and Fire I would only give a +1 for the limitation, the rest at +2)
I don't think I would bother putting Incite Effect and Supernatural Senses on there. Incite is wasted refresh if you have casting abilities and the same would be true of Supernatural Sense. Admittedly all of the cool things people do with furycrafting could be accomplished just with the Ritual and Channeling rules they would get to use. Need super strength? Replace your Might. Blow stuff up with your Fire-Fury? Evocation rules. Making slave collars? Earth-Furycrafting Enchanted Item. Gotta fly somewhere? Resources/Athletics/Drive() Replacement with Air-Furies. Sensing a furycrafted sword coming at your back? Just roll Lore, it can do that. Sensing non-Furycrafted swords coming at you? Alertness replacement.     

Given the somewhat vague memories I have of Codex Alera I'd go for the sprinter stunt perhaps with an extra +1 and a requirement of empty hands over Inhuman Speed. Maybe just a base Canim power built just for them.
I don't see them with hulking size, they really aren't that much bigger than a Irish Wolfhound. So big, but not so much hulking. I would cobble together the appropriate bits of Echoes and Claws. I'm not even certain I would put full Inhuman Strength in the Template, depending on the refresh level of the game and weather or not any players want to play one. Advantages of mass and such could just be tags or invokes on their high concept. I would certainly put any of the Inhuman building blocks except Recovery as appropriate and available. They do die and wounds linger.

My attempt; Canim Physiology (-2 Refresh)
Requirements: A High Concept that states you are a member of the Canim species.
Beast Senses. Canim have particularly keen senses (Someone who remembers better than I can fill in what senses) Whenever it seems reasonable that you’d have some sort of beast-born advantage of the senses (for example, a keen sense of smell while making an Alertness or
Investigation roll), you get a +1 on the roll.
Quadruped Sprint. Whenever a Canim has both hands free they can sprint on all fours gaining a +2 to their Athletics for that purpose. 
Natural Weapons. You have claws and teeth that do +1 physical stress
on a successful hit. This bonus stacks with any advantages due to Strength abilities or other powers or stunts that boost the damage of a Fists attack.

Water social defensive maneuver

Replace all of the sounds in your ear with the sound of running water, leaving you blissfully unaware of the annoying person talking at you.
Kemmlerian Necromancy armor style shield.

@Hick Jr.
Given access to this power I could completely break the balance of a low power game.  At "up to your waist" starting with 7 refresh you can pull a full extra refinement from the limitation.
If I particularly felt like being mean to my GM I would make a Spirit caster so I never need another element. Get 4 Refinement + Evocation for 6 refresh then only spend one of those refinements on the blank refinement. Double the crack if you are playing a high refresh game. All without giving up anything concrete, I can still do everything base Evocation can do.
I'd say you are better off going with one of the Superior_____ sponsored magics, skipping evocation entirely, with your specializations put into thaumaturgy then Evo-Thauming to blast. No wasted anything.

It all depends on what your player wants to get out of it. If she just wants to use her environment to add flavor to her effects no mechanics are needed, being a water-mage gives her the capacity to do that without extra problems. If she wants advantages above what the basics of magic do you have options;
Invocation for Effect of her high concept to counter magical effects not normally covered by countermagic would be appropriate. Particularly since it is setting appropriate and used base mechanics.
If she wants to be extra effective at countermagic (and you are ok with stunts affecting magic) She could get a stunt giving +1 power and +1 control when she is countering with actual water at hand. I think that is mechanically sound enough.

Metal Mental attack: Brittle Mind- Forces your opponent's thoughts to take on the rigidity of iron causing them to ramble off on a pointless tangent or completely shatters their ability to concentrate at all if taken out.

Winter Scene Maneuver

Spitballing it I might do this
Sponsored Magic: Music of the Skald -4
You have been immersed in the traditions of the Skald, memorizing thousands of songs and poems. Many of which contain kernels of ancient lore. You have been trained integrate complex vocal components into your spellcasting and few could describe your works as anything but enchanting. You are the truest of bards.
Sponsor: None or many
Agenda: The gathering of stories, creation of epic stories, and sharing of knowledge are central to the lifestyle. If you are sponsored by some being that being's agenda. If self sponsored you may take some less practical actions purely because it would make a better story.
Evocations always involve sound of some kind. Most closely mimicking Spirit evocations of the flashy light and sound variety.
Rituals often function like Psychomancy, bolstering allies with songs and tales of great heroism or destroying someones self-confidence with biting satire. Clever bards can recite stories to to piece together historical mysteries or call attention from otherworldy beings by singing of their deeds and glories.
Evothaum: Any effect that can be accomplished with Music of the Skald may be cast with the speed and methods of Evocation.
Extra benefits: Bards can sing or play an instrument as a supplemental action to perform a maneuver applicable to their casting that is also useful in social conflicts.