There are some books out there written in English and Chinese. You can also get Chinese writing from a restaurant. Discuss how many characters there are in the Chinese language and how they transcribe their writing differently from us.
I had a newspaper page that has basic words in Chinese ... dog, cat, love, mom, dad etc. (you can probably find them online... mine were from the newspaper's "mini-page for kids". The kids wrote a simple message in Chinese using black watercolor paint. Then they wrote what it said in English underneath. It looks awesome and it ties in well with soc. st. studying other cultures etc. I don't worry if they've done the writing correctly... if there was someone who could really read them it would be fun to have them try to figure them out!
If you can find a copy of the Chinese zodiac have them look to see what year they were born in and what their animal and sign represents. You could list the things they do to prepare for the New Year and contrast it with what we do for the New year. Then they could choose a tradition and draw pictures to go with the Chinese and American holidays.