Cut a strip of paper with 1.5 cm wide.
Make a ribbon shape on the right end of the strip.
Loop the right tail through the hole.
Flatten bottom edge against right tail.
Flatten left edge of ribbon against right tail.
Pull left tail to create a tight pentagon.
Tuck right tail into pentagon.
Wrap remaining strip around the pentagon following the shape.
Tuck left tail into pentagon.
Put pressure on sides to inflate star.