Bath Tokens

Bath Tokens (バス トークン, basu tōkun) also referred to as Herbal Soak Tokens in the English adaptation are painted wooden tags with unique symbols from the Japanese animated film Spirited Away. They are used to exchange for certain herbal baths in The Bathhouse.

Types
The markings on a Bath Token seem to dictate its expensiveness and possible effects. The more expensive the Bath Token the better the herbal soak. Bath Tokens are distributed to both paying customers and workers serving customers.

The quality of this token seems depends on the wealth of the customer and (in two cases) the status of the worker requesting it. Due to her lower status as a human being during her stay at The Bathhouse, Chihiro is initially refused bath tokens and is saved by No-Face who steals one (and subsequently many more) for Chihiro.

Method of Use
After obtaining a token, the worker assigned to a particular bath opens a small hatch in the wooden walls. The hatch has a small but very stretchable purple string attached to the Boiler Room. When attached to the string and pulled, the tag will automatically be brought up to the Boiler Room where Kamajii mixes special herbs into the water to be sent back to the bath via a wooden pipe (pulled down by rope).