I have several buttons configured to do different things around the house (both 1.0 and 2.0 buttons).
Here are some of the tasks I have assigned:
Control a Wemo On/Off switch to turn on a small space heater for cold mornings in my office space
Turn Nanoleaf panels on/off via IFTTT
Turn Philips Hue lights on directly via Flic Hub
Set a specific temperature on Nest Thermostat via IFTTT
Add a new entry to my iOS calendar via IFTTT, that I've taken a daily medicine (Button is on the bottle)
Turn on/off my TV and Audio Receiver directly via Flic Hub IR
I have one button directly connected to Flic via my phone:
Play/Pause control while walking the dog. So I don't have to get my phone out to pause a podcast when I inevitably run into a neighbor who wants to chat.
Arm/Disarm Motion Detection/Push Notifications from security cams via IFTTT
Hope this might spark something useful for you to create.