We're writing bilingual books with our 3rd and 4th graders. We've talked about several different ways to write bilingually and even gave a couple examples of mixed language books, where some sentences contain Spanish and English--Spanglish!
One 3rd grader loved the idea so much that he wrote this poem on his own in our afterschool club (our topic is Culture and Cooking, so his poem is about food, namely, chocolate). It's attached. I asked him to read it out loud for me. Just so you know, he says chocolate the Spanish way for this poem, not the English way. Enjoy! :)