Materials: cardboard, scissors, glue stick, movable eye, rope.

Production steps:

Step 1: Select a gray cardboard and cut it into a fan shape, as shown in the figure. On another white cardboard, cut out a shelf with the same arc as the gray fan, and choose another colored cardboard to cut out the shark's tail, dorsal fin and fins on both sides.

Step 2: Roll the fan-shaped gray card paper prepared in step 1 into a cone shape, and put a shelf around the inner side of the wide edge to assemble the eyes, fins and tail.

Step 3: Put a rope on the inside of the hat, and a shark hat is finished!