Cinemagraph Ideas

For my first cinemagraph, I'm going to photograph a cat sleeping (or the dog if it doesn't work), and only the tail will move.  This will be done at my house. It will probably require 4 to 7 photos, erasing everything but the tail

My second cinemagraph will be of a person typing. Only the fingers and hands (nothing from the wrist up) will move, and I'll either photograph somebody in class on the computer or get my sister to help on her laptop at home.  This may need anywhere form 2 to 6 photos, and only the body (excluding hands) should need to be erased, unless there is any background movement