TMNT and Percy Jackson Fans Can I have some help?

Okay, so I was racking through my brain for some plot bunnies (because Lord knows I need them >_> ) and I thought up a TMNT/Percy Jackson crossover! This takes place after The Last Olympian. So the guys are of course, you guessed it TEENAGE MUTANT NINJA DEMIGOD TURTLES! Yay! (Still am thinking about how they are though ) and anyways I was having a bit of trouble with their cabins. Raph and Ares is obvious, and I've put my hand down firmly for Mikey and Apollo (just start smiling and laughing now if you get this), but both Leo and Donnie are giving me trouble.
I was thinking one of the Big Three for Leo, most likely Poseidon, but I can't decide if I should do a different god (Like Zeus, etc.). That one is easy.
Donnie is hard. Now, I know everyone is thinking 'Athena Cabin' right now, but hear me out. Athena is one of my top 2 choices for Donnie, the other is Hephaestus, God of Forges. This is like building stuff. And he builds everything for him and his brothers and I quote Annabeth and Percy here:
' "Isn't your mom the goddess of inventors?" I asked.
Annabeth glared at me. "Yes, but this is different. I'm good with ideas, not mechanics." '
-Percy and Annabeth, Percy Jackson and the Bronze Dragon, The Demigod Files

So, there's that argument. Donnie is good with mechanics and Hephaestus kids are good with mechanics. But that counter argument is Daedalus, Son of Athena. You know, from Battle of the Labyrinth that had all that stuff on the laptop and built the wings, etc.
So what do you guys think. When everything is decided, I'll type up a preview of a part for you guys and eventually the story. SO please help me out!

Leo: Posidon (I have my reasons, one is if he was the son of Zeus, that would go to his head...)

Raph: Oh yeah, Ares...no hesitation

Mikey: Apollo, for more than one reason. One: yes, he's happy and smiles a lot. Two: whenever you see him, the sun comes up.

Donnie: ... Yeah, that's difficult. Athena, smarts mostly. The one feature that defines Donnie is that he's an Einstein.

Thanks for your input! Yeah, I'm pretty sure Leo's going in Poseidon.
Percy: My brothers are a cyclops and a turtle?
Me: *shuts book*
And Donnie's now has a 65% chance of Athena (it's going to go up with each person, but yeah, now that you said that it's a really good chance of Athena, but I'm still like. 'The building, the building!' inside my mind that won't go away. Whatever Thanks again!

My take on Annabeth saying she's not good with mechanics was that that trait pertained to her specifically and others might be better with mechanics. That's just my opinion though.

True I'm pretty sure Don is in Athena now.

Yeah, it's like Thalia is daughter of the God of the Sky, and yet she's afraid of heights.

Personally I think you have all the right ideas. And, like, the second I saw this post come up, I was like, "Yup. Raph is in Ares."
I've been a turtle fangirl since I could walk, and a Percy fan since five years ago! I love the idea of a crossover between them! Keep up the awesome ideas!

Thanks!

Wait, are you doing this as a fanfic or an RPG? If it's an RPG, then I'll want to join....

Yeah!

even though i've never heard of percy jackson i could learn ^~^

It's a fanfic, Raphael011, but I was thinking about an RPG to go with it.

Angel, only if you want to, but I highly recommend it. It is such a great book series!
PREVIEW COMING SOON! Just have to finish some chapter for some stories...

Just call me Roxie or Razy, saves ya the long title

K, Roxie!