Here is an overhead smartphone mount that makes it easier to stream tutorial videos. The iBOLT Stream-Cast Mount has 3 adjustable arms. The pole can be adjusted from 17.5 to 28.5″. It has a 3 weighted base that doesn’t tip over easily. This overhead mount has a phone holder that can handle devices from 2.25 to 3.75″.
This smartphone overhead mount is compatible with iPhone and Android devices. More info is available here.