Kids – DO try this one at home!!!

Diet Coke and Mentos

Burst of publicity
Here’s a marketing coup that has exploded all over the internet. The
humble Mentos sweet has been found to have spectacular properties if
mixed with Diet Coke. Popping the sweet into a Diet Coke bottle causes a
reaction that results in a 20ft geyser shooting into the air. Mentos has
found about 800 videos of the soda fountains all over the internet and
estimates the free publicity to be worth 10m dollars.

Need Mentos….!