Display custom text or a timer as a tile

This is a lightbulb moment of something I would like but not sure if or how it could be achieved.
In a nutshell, we have a newborn and both wife and I get confused overnight with when we last fed him, so wake up and have to check some notes we have scribbled down.
We have a dashboard in the bedroom and wondered if there was an intuitive way that we could see at a glance when we last fed. Some things in my mind (although no idea if possible)

  1. Send an SMS with simple think like 1.25 and display this content as a tile
  2. Display a timer as a tile to start when we finish the feed, can initiate by multiple ways - alexa command, button press etc…

Open to any advice on this one…