Minifigure sw0314 : Clone Trooper Captain Rex, 501st Legion (Phase 1) - Dark Bluish Gray Rangefinder, Pauldron, and Kama, Large Eyes [Star Wars:Captain Rex] [BrickLink]
BrickLink - Part 11217pb02 : LEGO Minifigure, Headgear Helmet SW Clone Trooper (Phase 2) with Captain Rex Blue and Tan Markings and Dark Bluish Gray Tally Marks Pattern [Minifigure, Headgear] - BrickLink Reference Catalog
BrickLink - Minifigure sw0749 : LEGO Captain Rex - Old [Star Wars:Star Wars Rebels] - BrickLink Reference Catalog
BrickLink - Minifigure sw0537 : LEGO Clone Trooper, 104th Battalion 'Wolfpack' (Phase 2) - Dark Bluish Gray Markings, Large Eyes [Star Wars:Star Wars The Clone Wars] - BrickLink Reference Catalog
BrickLink - Gear sw1de046 : LEGO Star Wars Trading Card Game (German) Series 1 - # 46 Starker Captain Rex [Card, Trading Card:Star Wars] - BrickLink Reference Catalog
These LEGO Star Wars minifigures could plummet in value
LEGO MOC Lego Captain Rex (Phase 2) Helmet MOC by glenn_tanner55 | Rebrickable - Build with LEGO
BrickLink - Minifigure sw1097 : LEGO Clone Trooper, 332nd Company (Phase 2) - Nougat Head [Star Wars:Star Wars The Clone Wars] - BrickLink Reference Catalog
Lego Star Wars Phase 2 Captain Rex Minifigure Legs 501st Clone Trooper 75012 | eBay
BrickLink - Minifigure sw0194 : LEGO Clone Trooper Captain Rex, 501st Legion (Phase 1) - Dark Bluish Gray Visor, Pauldron, and Kama, Large Eyes [Star Wars:Star Wars The Clone Wars] - BrickLink Reference Catalog
A few Bricklink orders arrived today : r/legostarwars
How to Get LEGO Star Wars Phase 2 Captain Rex for CHEAP!!* - YouTube