There are a large number of Chinese stocks that are traded on US exchanges. You should be careful to pick those that don't have much exposure to the US.
You can also invest in Chinese money markets via the ETF CYB. This provides a small but steady income while the Yuan is pegged to the dollar (~1-2%--better than treasuries). Should the Chinese depeg their currency, however, you will realize any gain in the currency. It's sort of like a free lottery ticket, only everyone that has one wins at the same time. The likelihood of a Yuan devaluation (relative to dollars) is almost non-existent.
I'm sure there are other ways to get exposure to China.