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NOTE: THIS EXPERIMENT TAKES SEVERAL DAYS.

Make decorations from styrofoam!

1Pour acetone into the bowl and immerse Styrofoam into the liquid. You can also pour acetone directly onto the piece, making it easier to see the Styrofoam disintegrate.

2Keep on immersing Styrofoam into the acetone, until you have a sufficient quantity of Styrofoam mass. Add more acetone, if the liquid is full of slime.

3Place a cake mould on a piece of tin foil and use a spoon to scoop the Styrofoam mass into the mould. Place any surplus mass on the tin foil and leave everything outdoors to dry.

4Wait a day or two to see if the mass has hardened. If so, remove it from the mould and let the underside dry for another day or two, until the entire piece is hard and dry.