Mentoes dropper

Tomorrow is the 4th of July. Rather than risk your fingers with explosives you can cause much safer dramatic reactions by dropping Mentoses into Diet Coke. You're probably familiar with the videos. Three Mentoses dropped simultaneously into a 2-liter bottle of Diet Coke causes all the carbonation to be released as close to simultaneously as makes no nevermind.

The problem I've had with this in the past is getting all three through the narrow hole in one quick shot. What I've done this year is take a sheet of paper and tear it in thirds parallel to the short edge. The first piece gets wrapped around the mouth of an empty 2-liter bottle to make a cylinder. Glue the edges so that the diameter of the cylinder maintains it's diameter. Use something sharp to cut holes on opposite ends about an inch above where the top of the 2-liter bottle would sit. You'll want to be able to fit a match through both holes.

Alas, this is too wide for our needs so a second must be made. Take a second third of the paper and wrap it around the Mentos tube. This is a bit snug so let out just a bit of slack. Glue that cylinder some glue to hold it's diameter as well.

Drop this cylinder inside the first one. It should be wide enough that it won't fit in the mouth of the 2-liter bottle and that Mentoses fall through without getting wedged against the sides. Using a pen or pencil reach through the holes of the original cylinder to mark points on the new one. Take it out and cut holes at those points. Drop the second cylinder back in the first. Jam a match through all four holes. You should be able to stick 3 Mentoses in the inner tube and get stopped by the match.

When it comes time you want to put this assembly on the top of an opened 2-liter of Diet Coke. When you yank the match you'll want to jump clear in a hurry. Things are gonna get foamy.