/Rum?, /Eigg?, /Muck? and /Canna?. The island of /Soay?, off Skye? is occaisionally considered under this title as well.
Note: Rum is not spelt Rhum. The spelling Rhum was coined by the former owner Sir George Bullough in the 1900s because he did not relish the idea of having the title "Laird of Rum"!