These are the shops which have stocked my books. I can't guarantee that they still do, but I support them for helping me to spread the word across the globe:
The Rebel's Sketchbook
SPARK & The Rebel's Sketchbook
Rupert has teamed up with Will at Gonzo Designs to make some merchandise. A healthy percentage of all profits will go to the Trussell Trust and coming up with future designs.