Numbers 16:39-40

39So Eleazar the kohen collected the bronze censers brought by the ones who were burned and hammered them into an overlay for the altar,

40just as Adonai had spoken to him by Moses’ hand, so that it would be as a reminder to Bnei-Yisrael that no one who was not a descendant of Aaron should burn incense before Adonai, and so no one would become like Korah and his following.