Hello All!
I designed and built this desk rest helper for my wife as she spends a lot of her time studying. It allows for a secure resting place for books, tablets, or a computer with adjustability to reduce back and neck strain. I've linked the YouTube video of the assembly process. I ended up making my own wooden board to attach the 3D printed parts; but any board of roughly the same dimensions will work. A smaller version can be accomplished simply by scaling down the model in your preferred slicing software.
Enjoy!