Dog only interested in toys she can eat

She has kong style toys, yak milk, hard bone, etc. Not interested. She's only interested in toys she can destroy and consume. She'll chew on a rawhide type stick for a while and either eat it or get bored and abandon it. We have several half eaten bones/chewies like this all around the house. I don't think she's trying to satisfy a need to chew or else the harder things would be gone. She ignores hard rubber toys, even if we fill them with peanut butter. She looks so hurt if I take away a soft toy and give her a bone. I've been getting her those long lasting plush toys made of a tough weave, and she does chew it, pull at the strings, swallow it. Those take her a long time to actually eat, so I'm wondering if a few strings here and there will block her up. I have a king Charles cavalier, so you can imagine the manipulation of sad eyes I have to be faced with. Like I'm watching a Sarah McLachlan Xmas commercial.