You can use bitUSD or bitCNY smart-coin on the decentralised exchange of Bitshares.
There is no need to trust a 3rd party for them, because it's the market that keeps the peg.

Volumes are quite high on them at the moment so you have fungibility.
bitCNY volume today : 17 millions ( https://coinmarketcap.com/currencies/bitcny/ )
bitUSD volume today : 700 k ( https://coinmarketcap.com/currencies/bitusd/ )