EVO - Omega Rex Redesign by crystalmoon101 on DeviantArt

Rex Salazar - The Wake Wiki

Nanites, Generator Rex Wiki

Nanite Vector by DesertDraggon on DeviantArt

Nanites, Ben 10 Wiki

Generator Rex Nanite - 3D model by jonathandbell (@jonathandbell) [61cd21d]

How do we get Generator Rex (Nanites)? Ben 10 Ultimate Ensemble (Update)

Prototype Nanite, Generator Rex Wiki

Cartoon network generator rex generatorrex GIF on GIFER - by Tojagami

Generator Rex Omega Form Generator rex, Character design, Rex

What do you think about an adult version of Rex Salazar? He's 25 years later after the end of Generator Rex, where Rex mastered nanite powers, learned a few new builds, etc.