I know this idea sounds rather dark. For this lesson I kept a serious tone in the beginning while teaching the idea. The high school 2nd graders were a bit confused why we were studying about obituaries but afterwards, they enjoyed it a lot.
First we discussed obituaries, asking students what they are, whether they have obituaries in Korea, etc. to get them talking a bit. The students don't have to read and understand the first example obituary I found online and put in the 4th slide, but simply recognize it as an obit (a photo of the person with info.).
Then I explained the task for today about students creating an obituary with the worksheet. I told them to just take it lightly as a joke, that the person they choose (some chose myself or co-teacher, Lee Myeong Bak, classmate or friend, etc.) isn't seen as really dead or wished to be dead but the obituary concept is just to be a new way for them to use their English and to not take it seriously.
After helping students write their ideas on the worksheet and giving time for it, I asked students to present their obituaries.