I really love the idea to combine shorts with advertising as long as it doesn't destroy the magic of a story. There are product placements which can really be distracting in very bad way.
We've given it a try with a German fitness Youtuber who looked for something special to promote his new fitness program. Finally we wrote a story of a young kid trying to escape his negative surrounding by starting an intense workout and gain self-consciousness - kind of a Rocky story :) It was an interesting way of product placement since the fitness guy was our "product" and it gave us the opportunity to produce another short. So think out of the box!
You can check it out on Youtube if you search for "Naturgewalt".