Matthias Urlich wrote Color Cursor which gave us a colorful arrow. The following Init is a modification of his work giving us a shaded 3-D gray-scaled arrow, instead. Obviously, a color or gray scale monitor is needed.
Only the "standard" cursor arrow is included, albeit 3-D.
Just drop into the System Folder or the Extensions folder.
* 3-D Cursor by Larry Rymal: (a modification of Matthias Urlichs’ Color Cursor).