The following tip may pander to a ‘niche’ desire but it has the knock on effect of letting you create a rather surreal desktop experience…
Docky icon size: stuck at 24px (or is it?)
After finding Docky’s default minimum size for icons was still a bit too big, reader Luke Nunns poked around for a solution.
“I found that if you go to gconf-editor > apps > docky2 > Docky > Interface > DockPreferences and then select the dock that you want to change the icon size of then you can change the “IconSize” to less than the normal minimum of 24.”