This is a strap, keyholder, or charm.
A warehouse find from 2008, and complete with its 2008 Yakult sticker of authenticity!
Please note that the photos shown are of a prototype; the production version may vary. Also, items such as this are mass produced and as a result some inconsistencies in finish and painting may occur; these are not considered manufacturer's defects. If you absolutely must have perfection, prepare to do some touch-up work on your own.