Yellow Gifts! These were obtainable in the Fourth Age. 

If you are interested in learning about the contents of this gift, talk to Jenna at her gift stall in Sirrus.

Potential Rewards

500 coins (8.0% / gift)
Mending I Book (8.0% / gift)
Unbreaking II Book (10.0% / gift)
Mysterious Tome (Tier I) (7.0% / gift)
Mysterious Tome (Tier II) (6.0% / gift)
Mysterious Tome (Tier III) (5.0% / gift)
Mysterious Tome (Tier IV) (4.0% / gift)
Mysterious Tome (Tier V) (3.0% / gift)
Yellow Gift Box (10.0% / gift)
Pumpkin Totem (4% / gift)
Ghostly Totem (4% / gift)
Santa Hat (3% / gift)
Gift Giver (1% / gift)
Cosmetic Cloth x 1 (5% / gift)
Enchanted Golden Apple (6% / gift)
The Pointer (4% / gift)
Pearlescent Froglight x 2 (4% / gift)
Verdant Froglight x 2 (4% / gift)
Ochre Froglight x 2 (4% / gift)