What's in the Box
"What's in the Box!?" has a bunch of different uses. You can create up to 26 digital shoeboxes and assign a color, letter, and prize/anti-prize to each one. Then create a real life shoebox for each one on the screen. Have your students pick a letter and that shoebox will be revealed on the screen. When you hit the spacebar, the lid flies off and a little sign appears with what is in the box.
One way to play is to have a student blindfolded, sticking their hand into a shoebox filled with... whatever you want! This is fun because you can fill it with gross stuff and reveal to the crowd what it is without the blindfolded person knowing. You can even use it as prize picker!