That’s such a nice thing to do for your aunt! I have been thinking of getting a lap board to do smaller puzzles, something that can sit in my lap, due to upcoming knee replacement surgery. I am in the US, but the way but found this: https://www.etsy.com/listing/191725302/jigsaw-puzzle-boards-small-space-dorm. I also realized that I have a padded lap tray that I could use for smaller puzzles (I have some wooden ones that it would be great for). Here’s one with a lip around the edge which could help keep pieces from sliding off if she shifts a bit in her chair. https://www.amazon.com/Rossie-Home-Detachable-Pillow-Serving/dp/B0854G1PLL/ref=sr_1_1_sspa?keywords=bean+bag+lap+trays&qid=1686221811&s=home-garden&sr=1-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUExNzk0SkM5UFYwNE9LJmVuY3J5cHRlZElkPUEwNjcxMDI2MVZQWVVRWDc0NFA2SCZlbmNyeXB0ZWRBZElkPUEwMjA1ODkyQ0dMVUU5UzYzUFAyJndpZGdldE5hbWU9c3BfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ==.