how to set mouse color?

[David Morse <svref@yahoo.com>]

My mouse cursor is mighty hard to find.  Does anyone know of a program 
which will make it red+white (instead of black+white)?  I tried 
xsetroot, but that only affects the root window.  I need red for all 
windows.

Also, anyone know of a technique to get mouse-trails?  I have nvidia 
hardware, and heard they had some way of doing that, but couldn't find 
any link.