Build a hockey arena (in our case a Lego model after the PPL Center in Allentown, PA)
Way too many Legos.
With a couple of helpers set up the little bit circuit - power, motion detector, splitter, long led & buzzer on one path and cloud bit on the other.
The build on the ice, ready to install
Setup the motion detector in the back of the goal to trigger when a score is recorded. Wire the red light with the long LED and setup the buzzer.
Goal with motion detector and wire goal light
Setup an IFTTT recipe to send a text when input received from cloud bit
Leave the kids alone in the room with the project for a few minutes. Hear constant buzzing and come back to dozens of texts.