1. Realistic modeling: dinosaur toys should imitate the real dinosaur modeling as much as possible, including the head, body, limbs, tail and other parts. This will allow children to better understand the appearance characteristics of dinosaurs during play.

2. Rich colors: Children like colorful toys, so dinosaur toys can be painted in many colors, such as green, red and yellow. This will attract children's attention and make them more willing to play.

3. Strong activity: Some movable dinosaur toys can make children more interactive in the process of playing, such as detachable parts and wagging tails. Such toys can make children participate more in play and improve their interest.

4. Safety and environmental protection: dinosaur toys should be made of environmentally friendly and nontoxic materials to ensure that children will not be harmed by harmful substances when playing. In addition, the structural design of toys should also consider the safety of children and avoid sharp corners and small parts that are easy to swallow.

5. Educational significance: dinosaur toys can contain some educational elements, such as introducing dinosaur species, living environment and living habits. In this way, children can learn knowledge in the process of playing and improve their interest in learning.

In a word, popular dinosaur toys should be products with realistic appearance, rich colors, strong activity, safety, environmental protection and educational significance.