The core of engineering
Look up a product in the grocery store with a mechanical part - for example a pump of a soap, a seal of a zipper bag, or a carrying case of ready-to-eat food. Identify the core engineering patent.
Bonus question 1
Alternatively look up any products with an electronic chip, for example a gift card with RFID scanner, or a bar code scanner. Identify the core chip that makes the system and identify the provider.
Bonus question 2
Identify the software used to design the mechanical or electronics cores and identify the competition in that space.