"Connect, Think, Wonder" Board

We have a whiteboard easel, which stands outside the cafeteria, across from where the lunch line forms so all can see. On most days, I write something on the board; something to get kids thinking (usually a connection I made to something I heard on the radio on my way to work, or a quote, On this Day, a Wonder, Famous Last Words etc.) or something that's more participatory in nature  (a riddle, a survey, a simple math puzzle, favorite music etc). This morning I planned on writing the answer to yesterday's question about "decacorns" (start up's valued at $10 billion+ dollars) and something about the History of March Madness. However, much to my surprise, a student got there before me and I found what's pictured up above! 

I LOVE the idea of students "taking on" the Connect, Think and Wonder whiteboard, and especially that it happened without my input! I'm wondering now about the best way to keep it going. Who? Schedule? Guidance as to what makes a good connect, think or wonder and where to find it? I don't know though, all of that though sounds like too much responsibility. Hmm?? 

For now, I think I'll just wait to see what happens tomorrow! However, If you have any ideas, I so want to hear them!