I am the 2017-2018 Design Director for KDVS, UC Davis' freeform, community-run college radio station, where I've been a volunteer and DJ since 2014. One of my responsibilities as Design Director is creating content for the station's social media pages.
A program I began when I took over as Design Director was the posting of weekly "DJ spotlights," featuring a different DJ every week, with information about their program and an accompanying illustration. I ask each DJ if there is any specific imagery that they would like to see attached to their spotlight, and use their responses as prompts. Although I have received a handful of very specific requests, most DJ's give me a mood, or an object they'd like to see represented in their illustration (ie, a flower, or a jet-engine).