@laughoutlood,
I've got one for you (that is real).
Take a glass (actual glass, not plastic) of
ice water in a nice restaurant. Pour some of it out onto the table, pour some salt into it, set the glass in it and it will freeze to the table
![Smile](https://cdn2.able2know.org/images/v5/emoticons/icon_smile.gif)
. A teacher of mine did this back in physics class years ago, it was cool.