First let me say that I do not claim ownership of the following. I was just lucky enough to find it online and, though I cannot track down the original source, I think it might be from Plaza Santillana. Normally I would say no to Spanglish, as I'm sure you would too. But I have to admit that this little poem delighted me and I cannot wait to share it with my students!
Also, here are a couple of funnies to share with your students!
And, in case you are looking for Navidad classroom materials, may I make a couple suggestions?