The Scottish Highland bagpipes owned by Montgomery Scott, on which he plays Amazing Grace as Spock's coffin is launched from the Enterprise in Star Trek II: The Wrath of Khan.
Montgomery Scott, proud of his Scottish origins in most things, keeps a set of Highland bagpipes aboard the Enterprise. They are seen in Star Trek II: The Wrath of Khan, set in 2285.
After Spock dies restoring main power in the radiation-flooded engine room, the crew assemble in the torpedo bay for his funeral. Kirk delivers a short eulogy, and as the torpedo casing that serves as a coffin slides along the launch track, Scott, in dress uniform, plays the hymn Amazing Grace on the pipes.
The tune is taken up by the orchestra as the casing is fired towards the newly formed Genesis planet. Scott had lost his own nephew, the cadet Peter Preston, in the same battle, and the moment stands for his mourning as well.