One of my teachers had a problem. Her students hated working to memorize the proper temperatures for foods. Yet, as you can imagine, this is vital information for future chefs to have.
After furnishing me with a list of 40 test questions that students were expected to know, I started working to build Pixel Art Mysteries in Google Slides as a way to provide them with a fun and unique way to have a daily review of the temperatures they needed to memorize.
We designed a five day do-now/bellringer cycle that covered all the items for the test and then allowed students to keep the electronic copies and redo them for practice if they chose.
According to the teacher students would get excited and race to see who could "solve" the image first.