I checked out this graffiti shop on McDowell Rd. in Phoenix on my trip. They had some great supplies and some really nice canvases. There’s also an alley in the back where writers can paint. It’s so great to see a store like this now, there wasn’t much like it when I lived I Phoenix (there was Wet Paint, which I still love). I was really impressed by what they had, and even more impressed by the work in the alley. Here’s a link to their website http://justblazedphx.com/ and some photos from the alley.