"Cool," you say. "So guests just walked in and picked up the cupcake of their choice?"
"Ha," I say. "You don't know me very well, do you?"
Cupcakes were flavored according to their chemical group, noble gases were lemon, lanthanides were chocolate mint, halogens were chocolate peanut butter, actinides were raspberry truffle, and so on. Guests reserved their cupcakes by taking the corresponding label and using it as a nametag. "Hi! I'm Fred. Ask me about bromine!" Yes, indeed. Guests were required to learn a little bit about their chosen element before they could consume its cupcake. Take ownership of it. Don't worry, reference materials were provided, including this informative and entertaining book and its associated card set. Unfortunately, one of the items I had purchased for reference has an error.
On this poster, you can see that the symbol for molybdenum is Mb, right?
Wrong. It's Mo.