Porcelain and cord bat theme necklace, Japan

This hand painted Japanese bat themed necklace is made of a central porcelain plaque, depicting two bats on both sides, and seven porcelain beads. It is joined together with a faded purple cord and has a dangling pompon. This type of cord and pompon are frequently used in various Japanese decorations. The plaque is about 2.5" x 1.5" and is fairly thin. This came from the same source as a "lightning bolt" signed bowl that I recently posted.

It is not signed and maker and age are not known. Japanese equivalent of costume jewelry?