How to fold an origami scallop shell

Fold a kite and turn it over. Fold the top and shoulders behind into a round fan, tuck the point under, fold two little ears and draw the ribs.

You need: 1 square sheet (15 cm), coral or pink on one side, and a dark pen. Easy, 6 steps, about 5 minutes.

Steps

Crease the middle. Fold the left corner to the right corner, crease, and unfold.
Make a kite. Fold the two lower edges in to lie along the middle crease.
Turn it over. Flip it over, long point down.
Round the top. Fold the top point behind 2.5 cm down. Fold the two side corners behind too, so the top is a round fan.
Tuck the point. Fold the long bottom point up behind, on a crease 6.5 cm below the top of the fan.
Fold the ears. Fold each bottom corner up and in on a short slanted crease. The two little flaps are the ears at the shell's hinge.

Draw ribs fanning out from the hinge to the rim. Make a few in different colours and glue them along a card seashore.