How can I put some separators between unity launcher icons?

I really need to put some separator in the unity launcher left bar... I think that could be possible to add some links to a program that simply do nothing so we only need to change it's icon to a separator-like icon... How can I do this?

Solution 1:

Just create launcher

gksudo gedit /usr/share/applications/separator.desktop

and paste following details in gedit.

[Desktop Entry]
Type=Application
Icon=/path/to/icon.png
Name=Unity Separator

then hit Super and search for Unity Separator and put it on Unity Panel Remember, It will consume same space as of other launcher size on Unity Panel.

Solution 2:

I solved. I just created some shortcuts with empty command and changed the icon. This is the result: