Use the Photos App (or get students to use free apps like Snapseed, Photoshop Express or Photoshop Fix) to have students alter an image from the original. They might enhance a selfie, remove objects from a scene, change perspective/mood through photos.
Using the Zach King videos that students watched as examples, have them use apps like Clips or Camera and iMovie to create a similar style video. They create a video that is 5-10 seconds in length.