I created the location-food clock as a way to notify my mom about where I am and whether or not I have eaten the appropriate meals for the day. It uses the location from my smartphone and turns the clock hands to one of three positions: Home, School or Elsewhere. The hands of the clock have three lights accounting for the three meals of the day. Whenever I have a meal, I press a button on my phone (using the IFTTT app) and the appropriate lamp lights up. At the end of the day, if all three lights are on, my mom would be relieved and happy to know that I have had food throughout the day. At midnight (my local time), the lights would all turn off.
Here is a link to my instructable post.