What are some good short film categories for a school club?

I recently started a film club at my high school and we are doing these small short film competitions. We started our first competition where there were four teams that had to make a fake news show because i figured make the first one easy. I need some help coming up with other categories. I was thinking a game show, do your own version of SNL celebrity jeopardy, parody a tv show, parody a movie scene, and film your own SNL style skit. Are these good ideas and can you help me thinking of some others?