In elementary school, I participated in a desk trend: Using the point of a paper clip to carve a hole into the side of the desk. In whatever school the above desk is in, a much better trend is at hand: Drawing beloved '90s cartoon characters. Not only do stalwart favorites like Pikachu and Johnny Bravo make an appearance, but do you notice Little Wooden Boy from The Tick? Because that's the best part.
Vi Hart deliberately eschews calculation in this entertaining video on fractal geometry and infinite series, illustrating the concepts instead using elephants, camels, and lots of fun shapes. Head on past the break to see her thoughts on Snake.