Activities about Ireland and Saint Patrick's Day, using videos from Youtube. Ideally, you should use it in a computer lab (that's what I do, I'm lucky!). Otherwise, use a computer and a projector to show the videos, but in that case show them at least twice, stopping if necessary to give time to the students to write the answers.
Great for oral comprehension, vocabulary and... general knowledge. I completed this activity with a crosswords I found on the internet, and which used the words the students had heard in the videos. (You can give that as homework)