tokens: These commemorative " kāng xī tōng bǎo " cash coins were given to children as " yā suì qián " ( 壓歲錢 ) during Chinese new year , some women wore them akin to how an engagement ring is worn today , and in rural Shanxi young men wore this special " kāng xī tōng bǎo " cash coin between their teeth like men from cities had golden teeth .