Recent versions of SMSQ/E (I think it’s after v3.06 of SMSQ/E, but I’m not 100% sure of that) let you load a 6×10 pixel QL sprite as a cursor in place of the usual flashing red rectangle, using the extensions CURSPRLOAD CURSPRON and CURSPROFF.
I’m not sure of the practical uses of this, beyond the obvious novelty value of having different coloured or different shaped cursors, but it was fun tinkering with them, even if only to find out how the new keywords work.
I’ve put together a small novelty package of sample cursors made with Easysprite (some of them trivial!) and a document describing how to use them.
Look for the CURSPR package on the GD2 page at http://www.dilwyn.me.uk/gd2/index.html