I made a comfy case for my Kobo today. Flawed. I used this design (can't remember the site) for my notebook and it worked out well. I did lazy measurements this time, so it didn't turn out as well as I'd hoped. It still holds my Kobo, which means it's good enough for now. By the way, Fabricland on Marine drive is having an Everything Must Go sale. At least 50% off of everything.