I've used a cat food that had lamb and my kids all liked it. As long as the food has at least 34% protein and 18% fat. Also, make sure the 1st ingredient is a meat product. I mix 3 different kinds together.
As for litter I use a soft paper product. I know a lot of people at the ferret shelter use a wood pellet product. It dissolves when it gets wet so you can see where they go. Never use a cedar or pine product for litter or bedding. It's bad for their health. As for bedding, they love old t-shirts, flannel shirts, blankets etc. Just make sure you take off any buttons.
For litter training your fuzzy, don't take her out of her cage right away when she wakes up. Let her go in her litter box first. When she does, give her a little treat like a little piece of a rice cake. Tell her she's a good girl. Gradually cut that out, but keep praising her for awhile when she uses the litter box. Most of my ferrets loved rice cakes.
As for the Ferretone, all the pet stores I go to sell it. But if you don't find it, I'll look for a website that sells things for ferrets. Also, here's another website that is great. It's really helpful for the new ferret owners and ones who have had them awhile.
http://ferretcentral.org/
I'm sure it'll help you out!
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Kat
Ferret mom to Jasmine and Daffy
A Cheesehead from Wisconsin