Do you have suggestions as far as what type of litter, food, treats?, and toys?
Litter: I use fresh step. It's what Cubby loves and will use over any other brand.

Food: I'm not really sure what others use, Cubby is on prescritption diet.

Treats: Most cats love temtations, pounce. I use to buy the Whiskas packet things. I still have some that I give Cubby every once in a great while.

Toys: Fake furry mice is always a huge hit with kittens. I would have to agree with Catnapper, little balls with bells in them. Milk rings are also a huge hit with most cats, wads of papers, toilet paper (they will more than likely shred it while you aren't watching of course) if Cubby gets his paws on a roll of paper towel it will be shredded very quickly as well.

I was thinking about getting her a collar too with her name and the contact information.
It is always a good idea to put a collar on your cat, even if it is an indoor only cat. Atleast that way if it does get outside, and everyone here knows accidents do happen, then your little Mina can be returened to you safely.

P.S. Welcome to PT, I can't wait to see pictures of little Mina.