In article , James Wren
wrote:

Does anyone know where I might be able to get hold of
a second hand airline passenger seat?. I'm re-branding
Air India as part of my Design Degree, and a seat
would be a nice touch!. Not having much luck scouring
the net, hopefully until now!
Cheers
James Wren (England)

Contact a freight outfit that flies converted airliners.
They will often sell the seats they remove from the aircraft.
I know of one outfit, here in the states, that sells the three-abreast
coach seats and the two-abreast first-class seats.