Can I suggest loom knitting? It's easier and since it's easier it's more likely that someone with shifting moods will stick with it. I got it originally because a patient told me it was a fun and easy way to make socks. I've never actually tried to make a sock though because I got hooked on baby hats and make them to donate to a charity that provides them to families who are not expecting their baby to survive or babies in NICUs. I've probably made, oh, 500 in the last 4 years. I hadn't done it for a long time but have been doing it again lately both to fill the current box for shipping and because I needed something to keep my hands busy but not my brain. The looms can be bought at a craft store or Walmart and I learned how by watching an 8 year old do it on youtube. You can do different stitches and make patterns and everything. It's a good hobby. I made my own winter hat last year and was quite proud of it.