Anakin's lightsaber has evolved in appearance throughout the Star Wars Franchise, having also been wielded by different users throughout trilogies. The original prop making its first appearance in A New Hope was based and built upon a Graflex camera handle and had continued to evolve in appearance.
I built these 3D lightsabers showcasing their different appearance between different films - I used Maya for hardsurface modelling as well as simple Hypershade texturing within Arnold renderer. Photoshop was used for the blue glow of the blade in image #2.