Taken from Narnia.wiki.com,
RHINDON-Rhindon was the name of the sword of High King Peter Pevensie of the kingdom of Narnia. It was given to him just before the end of the Hundred-Year-Christmas by Father Christmas. Rhindon’s hilt was made of gold and it was the perfect weight and size for Peter. It was with this sword that Peter slew the wolf Maugrim. He later used Rhindon at the Battle of Beruna and dueled the White Witch Jadis with it. It is likely that he used this sword during his battle to drive away the giants from the Northern boundaries of Narnia, and that it is around this time that he named the sword Rhindon. When King Peter vanished from Narnia, his sword was placed in the treasure chamber of Cair Paravel, and when Peter returned to Narnia 1,300 years later he found the sword and again used it during the Narnian Revolution and during his duel with King Miraz.
SUSAN’S HORN-The Horn of Queen Susan Pevensie of the Kingdom of Narnia was a hollowed ivory animal horn used in times of emergency to call for help. It was given to Susan by Father Christmas and she used it first when the Battle of Aslan’s camp was about to break out. The sound of it was described as “like a bugle, but richer”. After Queen Susan disappeared from Narnia, her horn became lost for many years. Until, it was found by half-dwarf Doctor Cornelius Shortly before the Narnian revolution Cornelius passed the horn to Caspian X who used it to call back the Pevensies to Narnia. Later when Caspian set out on his voyage on the Dawn Treader he gave the horn to his regent Trumpkin to use if any great need fell on the land in the king’s absence.
SUSAN’S BOW AND ARROWS-Queen Susan Pevensie’s bow was the weapon of the oldest Pevensie queen of the kingdom of Narnia. It was given to her by Father Christmas near the end of the Hundred Year Winter. It came with a quiver of arrows which Susan was told would not easily miss. When Queen Susan vanished from Narnia, her bow and arrows were placed in the treasure chamber of Cair Paravel, and when Susan returned to Narnia 1,300 years later she found the bow and arrows and used them to help save the Dwarf Trumpkin. She also used it during a friendly archery competition between herself and the Dwarf.
LUCY’S CORDIAL AND DAGGER-Queen Lucy’s cordial was a medicinal potion given to her by Father Christmas and was from the juice of the fire flowers that grew in the mountains on the Sun. A few drops would cure any wound, and she used it to save her brother Edmund and other wounded after the Battle of Beruna. The bottle the cordrial was in was said to be made of diamond. Lucy’s dagger was also given to her by Father Christmas, though it isn’t shown whether she used it at all, except for when she hit a bull’s eye when her older sister Susan is practicing with her bow and arrow.