2. Heart-shaped ring origami: use a square piece of paper to fold the trace, then fold the heart to one side and make it into the shape of a ring;
3. Camera origami: Fold a square piece of paper into two center lines, then fold four corners along the center line, repeat it, and finally make it into a camera shape;
4. Rose origami: Take a square piece of paper, then fold a small square in the middle, then fold the petals of a rose, and finally make it look like a rose;
5. Little dinosaur origami: Take a square piece of paper, fold out traces along the diagonal, then fold out a smaller square, then fold out the appearance of a little dinosaur, and finally draw points with strokes.