Person? - No
alive? - No
Crafted object? - Hmmm...kind of, I guess....
Made by a mortal? - No
Made by a person? - Yes
Made by an Elf/Elves? - Yes
Made in the First Age? - Yes
A weapon? - No
Is it portable? - Very, as long as one knows about it.
Is it something you wear? - No
Does shapeshifting have anythig to do with this? - No
It's crafted/invented, but it's not a physical object, so much as knowledge...that allows one to make it physical by using the knowledge to engrave it on say, stone.