That's fantastic that you want to help homeless ferrets! I'm sure the ferret shelter near you would more than appreciate donations. I know the one here in Washington is always open to accepting blankets and bedding as well as other things (but crafting is the most fun form of helping!).
I'm sorry that the first two links aren't working. I'll see if I can figure something out for them because I was sure I checked to make sure they work! (But hey, that's the internet for you!)
What I forgot to state was that if anyone is interested in helping the shelter over in this area (let's say you live in Washington State or Oregon and want to help, we could always work something out where you send the donations and I could always pay for shipping or something along those lines.)