Telenor Norway have made some really nice IoT videos that will get you inspired. The videos are in Norwegian but even if you do not speak Norwegian they are pretty easy to follow. All the examples in the videos uses 4G broadband modems for connectivity but from a technical perspective they could probably have been realised using LPWA technologies (e.g. NB-IoT, LTE Cat M1 or LoRaWAN) as well. For the full inspiration site from Telenor Norway (entirely in Norwegian) you can go here:

Can a keyboard make the town hall bells chime?

Can a hug light up the train station building?

Can a penalty kick at Grunerløkka be saved at Youngstorget?

Internet of things and fish farming!