Things You'll Need
Instructions
Measure out one-fourth cup of soda pop and put it in a glass. Flat soda pop works well.
Use the marker to mark a ring around the bottle, about a fourth of the way down.
Lay the bottle on its side and cut along the line.
Stand the bottom piece up. Pour in the soda pop.
Set the top piece in the bottom one, upside down.
Put tape around the edge to hold the pieces in place.
Set outside.