An easy method of getting them firm without turning the yolks green is to place the eggs in cold water, bring it to a boil, then cover it and turn off the heat. Leave the eggs in the hot water for 15 minutes.;
,, Use a 12 x 10 inch (30cm x 25cm) piece of stiff cardboard. Score creases every two and a half inches (5cm) and fold these creases to create three V-shaped ridges. They should form a triangle tube with an extra inch (2.5cm) or so flap.

Tape a 12 inch (30cm) section of dowel (or wooden spoon handle) to the center of one of the sides of the triangle on the side that will face in toward the eggs. See the image for how it should appear.
,,,,, Serve and enjoy the comments of your friends and family.
Hard boil the eggs.Cool the eggs and remove the shells.
Create your egg mold.
Lay the peeled boiled eggs end to end on wax paper.

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Roll the eggs up in the wax paper and twist the ends closed.

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Place the egg roll inside the cardboard "mold".

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Wrap the cardboard mold around the eggs and secure it firmly with twine or rubber bands.

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Refrigerate for at least 4 hours.

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Remove from the fridge and slice the eggs in half to reveal the molded heart shapes.
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