hey Finn... did u make yr backpack? i'm in the process of making mine for colossalcon i finished the hat from the Threadbanger tutorial but there aren't any tutorials on the pack... do u have more views of yr bag?
I don't many pictures, but I can tell you how I made it. The materials I used were Anti-Pill Fleece, flexible foam (around 1 inch thick), a button, and polyfill. I put it together with hot-glue and a sewing machine.
haha omg that's exactly what I'm using to make mine For the body of the bag I just cut two ovals to scale and one oval I cut in half. covered each with fabric upholstery-style and hot glued those together, now working on a blind stitch all the way around. Next for the straps. Good to know that I'm on the right page here