If you want to make a video but don't want to show your face, why not use this animated cat program?
This app displays a cat. It can type on the keyboard or move the mouse. It mirrors your mouse movements.

Default keyboard shortcuts: Z and X to tap on the keyboard, C to wear sunglasses, and V to wave.

To run: Menu -> Sound & Video -> Bongo Cam
To run in a terminal: bongo

Go here for configuration options: https://github.com/kuroni/bongocat-osu/wiki/Settings
NOTE: This app can't see your mouse movements on Wayland desktops. To make it work the best, switch to X11.
