Dora's happy box is a box that has everything that makes her happy, like her blanket that Abuela made for her as a child, a bracelet that her parents gave as a 4th birthday present, and her flute that was a Christmas present from Boots. The happy box appeared in the episode "The Happy Old Troll".
Looks[]
Happy Box is mostly yellow with blue corners and a blue handle and a smiley face on it.