Well, if the tablet is homemade, then everything else should be too. I’ve seen the little tablet holders on the Amazon site, usually made of plastic, small, and probably capable of serving the purpose. I went old-school for my homemade version, making it from thin cedar boards, and old cupboard hinges from a long ago kitchen rehab project. The hinges serve to fold the holder when not in use, or to fit it into the laptop carry case.
Homemade Tablet – Homemade Stand