To make a great explosion, you must first start with an object being thrown. Then, you must make a cloud of smoke with a ring around it. Last, make the cloud of smoke grow and shrink back down. Making lines in the middle of the cloud of smoke is optinal. (line width of object=5, line width of explosion=1)

Slow.
Smoke.
Pretty much the same as making an explosion. Except, make the cloud of smoke go outward and only grow about 1/3 of the page. Then, make the middle of the cloud shrink and split apart. Last, Make the cloud of smoke run out the sides.

Slow.
Water Drop.(not very good at this one.)
First, make a line about 1/3 of the page and fill-it-in. Then make the water drop fall from the center. Next, once the water drop hits, make a wave near the middle and make the sides of the line straight. After, keep adding waves to the line. Until, they reach the sides, then you would want to make them shrink. Vwella! Instant water drop. And the easytoon will repeat itself.(if done right)

Slow.
More coming soon....