That's what I need--a sturdy reclosable bag to stuff with cat nip, that I can wash & repack when needed, like after the dog spits all over it.
I could just find an unmatched sock, get off my lazy a** & make one since I used to make really complicated clothing in my younger days, but that would require too much energy.
I made my kitties toys out of socks, and it was the best thing I ever did they love them and has become their favorite. I stuff the socks with other socks that were wore out and put cat nip in them and put pieces of yarn and ribbon sticking out the end.