The cone is to protect her stitches from her gnawing; we've also taken away her climbing post and we no longer let her outside to play, so she can't burst her stitches jumping up and down. She's been so quiet and sad since we took all the good stuff out of her life.
To cheer her up I put her up on the kitchen bench to watch me do the washing up. She loves water, and bubbles, and she is keenly interested in everything we humans do. Under the circumstances, it was the perfect treat.