The Great Oz gave the Tinman a heart shaped Pocket Watch. Mego gave him a sticker of that pocket watch for his chest "armor". To be complete, Tinman must have his heart sticker, and it has not been factory reproduced.
Tinman wears silver boots with studs that represent his bolts on them. These boots are unique to the character and have not been factory reproduced.
Not sure that Tinman's parts can be called armor, but for lack of a better term, that's what we will use. Tinman has upper body "armor" over his type 1 or type 2 body. This is removable, but it takes a lot of work, so it is rarely missing from the figure. This armor has not been factory reproduced.
Tinman has slip on "armor" on each arm. This armor has not been factory reproduced.
Tinman has slip on "armor" on each leg. This armor has not been factory reproduced.
Of course a woodsman needs his Axe. Tinman carries an axe that can also be found in some figures in the Lion Rock line. The axe has not been factory reproduced.