Chew toy for bengal?

My two y.o. Poppy has a penchant for small diameter, round, hard plastic/rubber power cords. You can imagine the issues that has caused. Any suggestions for toys or even non-toy items that might work as a replacement? I've tried those rubber twist ties and they're a good start but she quickly gets bored with them. One unfortunate caveat is that she often eats pieces of things she shews off, so it needs to be really tough, but still soft enough that she can sink her teeth into it a bit.