It would make a great display item. It was originally an internal part of the cars fuel tank. Has also been CNC engraved with its own unique part number. It measures approx 4.5" in diameter and is 5" tall. Given it's heritage it would make a great gift for any motorsport fan, engineer or car enthusiast.
In case you are wondering where this item comes from, my day job is actually repairing and running racecars, however I now also use thematerials / parts at my disposal to make the range of interesting items that you can see in my shop.