Three masks based on 'No David!' Each can be colored, cut out, and taped to a popsicle stick to make a mask. The second mask comes without eyebrows and with a separated mouth so that students can decide if David is happy, mad, or sad.
My students have loved this activity in the USA and in Vietnam. I'm sure your students will too. And thanks to the teacher (whose name I have forgotten) whose drawing on her blog gave me the idea.