One of my favorite design passions is CD cover artwork. I've designed a number of CD covers over the years, and in between projects for actual clients, I create design mockups to explore different themes, styles, concepts and illustrative ideas. I'll usually choose an existing musician or band, and create an imaginary title, then design around that theme (or simply create an image and then imagine which artist and title might be appropriate for that concept). I often use or adapt parts of my own drawings, paintings and/or photographs, or create a digital art piece from scratch, or a combination of all of the above. Sometimes I'll combine 3rd-party sources as well, like stock photography or other creative commons imagery.