My favorite collectible is January 2007s 'Gift of the Goddess'.
It taught me about all the different goddesses from around the world: From Greece, Athena, goddess of wisdom and courage. Japan's Kaguya-hime, the goddess of the moon. The feminine goddess in Hinduism, Durga. Lastly the Egyptian Goddess of mothering and nature, Isis.
These goddesses sparked interest in me and I looked up information on them. I leaned more about them in high school as well!
Learning about them made more cultural and curious about how other countries do things, whether it's religious, celebrations, Gods and/or Goddesses. I still own the item and I'm glad I do!