This doesn't sound much like Shalimar 😉 , but is an interesting (IMO) example of open strings only ........
The Fall - "Who Makes the Nazis" is based around a riff from the 4 open harmonics . The riff was composed by non-musician singer Mark E smith on a toy four string plastic guitar, and bass Player Steve Hanley played it as harmonics. Warning, this song is not particular accessible, even by Fall standards.