One of the joys of Nellie is the crazy detailing to be carried out. It's the first time that I've found a load of large round-head pins to be sued on the ends of cylinders and tops of sandboxes (I think that's what they are).
The buffers are fun - brass tubes for shanks and drawing pins for the whacking great heads. Plenty of supeglue and they will look the part.
I've gone off-piste with the smokebox door handle. It's supposed to be another pin but I couldn't resist adding clock hands by inserting a couple of bits of brass wire.