After making this thread:
It'd be nice if we could pick a new sound effect for the Triforce cutscene. Although we can kind of do so with scripts, it'd be good if we could just pick something else.
Also, related, if Triforce pieces could have pickup scripts attached (according to ywkls they can't) that'd be really nice. Means that even if you can't change the sound, a script just about can. Another possible application: we could attach another item to a Triforce piece (with the item bundle script) and offer, say, the hookshot, as a dungeon reward, with the Triforce cutscene.