2D AR-style Ghost Guide Hands (Something used in following a tutorial)

I am planning to develop an AR-style tutorial in MIT App Inventor that overlays semi-transparent 'ghost hands' onto a live camera feed to visually guide users through the physical steps of performing a task, such as folding a paper airplane. Is this possible to create, and could someone help me understand what I should do or which extensions I should use to successfully build this? If there is already an existing sample of this type of project, please share it, as it would greatly help me with the project I’m planning to create.
Virtual-Hands-Outline-Hands