Making my own hooks is a little too McGyver for my DIY skills sadly
I do however have lots of thin hairbands. So I put one hairband horizontally across at the top and one at the bottom. At the back I looped two hairbands together (just passing one through the other so together they look like a bowtie). I then looped the joined hairbands through the top and the bottom of the horizontal hairbands. From the back of the Nook, it looks like a warped
I. A scrunchy I that is pulling towards the middle. Unlike Ret's setup, I only have one band to put my hand through rather than two. I've only tested it out for a few minutes and it does allow me to hold the Nook without applying a grip with any of fingers. I'm holding the Nook but my fingers are resting rather than applying pressure.
I'll get back with a review once I've used it for some heavy reading. Let's see if it'll actually be comfortable.
I only have colorful hairbands so the red I'm using is slightly distracting. If this really works, I'll buy some black ones and use those.