FOUND THEM! 😀 😀 😀
On your mac....
Macintosh HD > System > Library > Screen Savers > right click name of screensaver and choose SHOW PACKAGE CONTENTS > Contents > resources > IMAGES
😀
Before you drag the files out of the packages, causing the screensavers to go coo-koo, I'd recommend you make copies of the screensavers on your desktop, and open them there. 🙂