Graph paper playthings with backlight June 21, 2016July 28, 2016 / sarahkateritchie View this post on Instagram #graphpaper playthings with backlight A post shared by Sarah Kate Ritchie (@sarahkateritchie) on Jun 21, 2016 at 12:32am PDT Share this:ShareClick to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Like this:Like Loading...