craftgrrl | cat toys

I bought one of those cigar shaped cat nip things in the pet store for my cats. Apparently they really love it, but I don't want to keep buying them at the price they are in the pet store. I'm sure I can make it cheaper (and keep around leftovers to keep making more). What kind of cloth would one buy for this? And other than cat nip, what else do they generally get filled with (meaning, I know to put cat nip in, but what else to give it shape)? The one I have is starting to leak cat nip, but the cats haven't destroyed it to the point that I can see what else is used to fill it. I'm also asking what kind of cloth because the one I have, I don't like how the cloth has worn. It's a cheap fleece of some sort, and the cats can pull out the fleece stuff.

Cross posted to