[ArtWomb]

I still think Kaggle's Titanic Survivability remains the best ML demo. Something everyone can relate to, surely. Find a challenge on Kaggle or AI Crowd that relates to your vertical and the business case will be obvious ;)

https://www.kaggle.com/competitions

https://www.aicrowd.com/challenges

If you want to do a "live" demo, load custom data into Google Cloud AutoML, auto generate models and start querying. Everyone I've shown this to is amazed and immediately begins brainstorming!

Tackling High-Value Business Problems Using AutoML on Structured Data

https://www.youtube.com/watch?v=MqO_L9nIOWM

[MmdYw]

I second this. kaggle competions seciton alone is worth the mine

[AlexDanger]

This is great, thanks for your post.