Everything can be adapted to the violin. You never found a violinist's gift; just find a violin-themed thing. Buy theme music, jewelry, accessories, bookends, books, pictures, posters, tapestries, clocks and even bottled liqueurs. As long as it has a picture of the violin or the shape of a violin, it will make them happy. They will wear clothes or jewelry, or decorate with pictures or decorations. They will watch violin picture books or play music.