Watch this YouTube video, which is sweet and wistful all the way up until you realize it's selling flavored sugar water:
The question I asked my students was, "when did you realize it was selling you Coke?" and "how many times did you see Coke throughout?"
The kids who are unfortunate sponges for product placement didn't notice it was a Coke ad until the end. Savvier shoppers spotted the Coke billboard halfway through.
These classroom conversations are fun and useful and I'm glad we make room for them in math. I have given up posting my show and tell media here but if you'd like a feed of photos and video I show in my classes every day, I have tagged them here.