I really like this wallet too, and had never seen one like it before. I love the fabrics and salute your ingenuity. So YES, please do a tutorial for us!
If you are a serious crafter without some kind of injury you just aren't trying hard enough <kidding>
I know I have pushed the limits and have the scars to prove it. Sometimes things just do not work out as well as planned - even with safety measures in place.
I am actually glad you shared this and more glad that you are okay!!!