Guitar theme again.
A saddle from the Fender type guitar bridge.

On GNOME,
1. open System> Settings> Appearances, select "Themes" tab.
2. drop archived file onto the window.

On Xfce,
1. Untar the file into ~/.icons.
2. go to Settings Manager> Mouse, on Theme tab, select this cursor theme.
3. On some distibutions, you have to re-login.

And on some versions of Ubuntu, you need some more steps.
1. sudo gedit /etc/alternatives/x-cursor-theme.
2. in the doc, find "Inherits=xxx", replace "xxx" by "BridgeSaddle".
3. save, close, re-login.

Tested on Debian and Xubuntu.