For the spell Gentle Repose, the components of the spell say:
Components: V, S, M (a pinch of salt and one copper piece placed on each of the corpse's eyes, which must remain there for the duration)
If a player wanted to use the spell for preservation of materials like a Dragon Heart but not carry an entire dragon with them, could they remove the dragon's eyes, tie the copper pieces around them, and carry both eyes and the heart (tied together) with them? Additionally, because the copper pieces are not actually consumed, does this matter at all if a spellcasting focus is used?