Sugari No Ontachi (須賀利御太刀) is a sword which represents the regalia of Japan. It is being held at the Ise Shrine in the Mie Prefecture and only taken when a new emperor ascends to the throne. During this ceremony, a feather from a Crested Ibis is also used. The last time the sword was taken out for ceremonial purposes in 1995, the endangered status of the Crested Ibis caused worry that the ceremony would also eventually be impossible, so a stock of feathers from the Crested Ibis was gathered for use until the year 2013.
It is said in legends that the blade was created after Susanoo slew the serpent that ate maidens.