I can only speak for myself of course, but I'm gonna share my writerly wish list. Some of these will be very general and some specific.
In no particular order:
Books - Fiction books, books on craft, books on self-publishing and promotion... Doesn't matter. I will take ALL THE BOOKS. 🙂
Notebooks - I've never met a notebook I didn't like. Well, that's not true. But regardless of how much or little I like a particular notebook, it will never be wasted. I have them and use them everywhere and can always use more.
Pens - I have a problem with pens. I have so many and will always always get more. From simple ball point pens to fancy fountain pens...I want them all. And when I find a pen that writes well...I stock the F up. In a big way.
to be able to write in bed without my back paying me back for days afterwards.
New computer - While my trusty MacBook is trudging along, I would love a new computer, right now.