Well then they're past teething.
But yup, regular drinking straws is exactly what I mean!
They normally do not pose a health hazard (in fact, we've never given kitties pipe cleaners - always too afraid they'd hurt themselves on the wire in them).
But try playing with one with her first and keep an eye on her. The plastic is tough enough that NORMALLY they do not chew quickly through it - it takes some work. They'd last a couple of weeks to a month before we found we needed to throw them away. Once they start to get chewed up they pose a hazard, which is why we pick them up and throw them away at that point. Don't want them swallowing any little peices of plastic. But for a very serious and intent chewer - I guess it's possible they'd try to gobble them up? I still think they'd last at least a couple of days before you needed to toss them.
But try one and see what happens. If she's very
serious about chewing, they may not work. But I think it's worth finding out, because it could be an easy cheap solution.