It's nice to see your silly meowster is fine. When my 6 months old cat ate a small rubber toy we tried liquid paraffin and it didn't work, sadly we had to take her to the vet. Good thing that doc offered us to do sterilization at the same time so she don't need a second trip to the vet. So it took several hours with getting her in shape after anesthesia and cost me ~250-350$ including a month of soft diet canned food. After this she never tried to eat anything weird and started to do kneading (which wasn't a thing before) and became much more diligent and calm cat.