I recently lost my custom black Vista Aero cursors by accident, so I had to do new ones, thought I might as well base them on the Windows 8 cursors (I'm still on Windows 7).
I put a little more work into them then the Vista ones, because I made sure the fills were completely white before inverting them this time, so you don't have those sort of inner glows (where they first had innner shadows) like most black Vista Aero cursors out there. Also gave the 'not allowed' and 'loading but clickable' cursors the same 'no tail' styling as I saw on new ones for OS X, because I really liked that. Had to keep the L and XL sizes for those in their normal style though, because otherwise they wouldn't fit their 48px canvas, of course I did blacken the pointer parts for the 'loading but clickable' ones.
Although you don't see it in the preview, of course they have white outlines.
Anyways, lots of words for a simple thing, but I just thought I might not be the only one that wanted to use these.
Note: I prefer installing these by completely removing or renaming the original Aero cursors and replacing them with the modified ones, in stead of just selecting them from the mouse pointer tab one your mouse properties window, because this way they show up on the logon screen as well.
Update: Added a black hand alternative.