Spurred on by a bout of nostalgia for those orange and brown themes of last-decade's Ubuntu releases, I forked both the elementary icon theme and GTK theme to create a this theme in their honour:
Now it's not as orange as the Human theme of the day, but it has a few subtle call backs to that theme's colour scheme and the dark portions of the theme are in memory of those dark brown themes (like this one) that were popular amongst Ubuntu users.
If you'd like to use it, you can get the both icon and GTK theme from their respective GitHub repositories, but keep in mind I've no plans to develop or distribute them further, this is just for a little fun.
Theme on Github Icons on Github