We should attach some IoT sensors and stream user behavior back to our server, either forward the data to the vendor of your item and let them provide some support[1], or do some machine learning for credit assessment[2]. And this could be called the world's first smart in-home physical caching device.

[1]: https://news.ycombinator.com/item?id=26114194

[2]: https://news.ycombinator.com/item?id=26119312

Could we possibly use blockchain to track the state of each item?

I see you took out the car keys. Drive to your closest Shell now for a 2% fuel discount.

Don't forget adding some blinking lights or beeps to drive "engagement" in case the user doesn't engage with the bowl for more than a couple hours.