Ben (Obi Wan) Kenobi ANH Lightsaber      
The pommel was a faucet handle and the lower grip a Browning machine gun booster cap. The emitter is a Rolls-Royce Jet Engine component.

This type was used by Ben Kenobi in Star Wars ANH. Lucasfilm propmakers used a Hales No.3 Mk.1 rifle grenade, a mounting clamp from a Graflex camera flash gun and a calculator display bubble lens.