Suggestion 1. You can train your arms and walk. You can send a stroller that can push and make music. Or small ants that can be towed away, or similar toys such as ducklings. (highly recommended)
2. (training the senses) Trojan horses can also be used. (suggested)
3. (Developing Intelligence) If possible, send children to early education to develop toys. (General recommendations)
4. (Safety Series) I want the plush doll that can take off my clothes. Exercise helps children learn to dress. (suggested)
5. (Children's publications) Look at children's interests. (Not recommended)
6. (Cheap and affordable) You can go to the supermarket for 2 yuan and ask for all kinds of pull toys/pull-back toys/clockwork toys. Resistance to falls. Attention. Don't choose small parts, lest children eat by mistake. (highly recommended)
7. Give him a big red envelope (the most vulgar and affordable). Let his parents watch and buy. Ha ha. Save your strength and make the host happy. . (highly recommended)
Maybe every parent's education angle is different. What you need will not be the same. Good luck ~ please refer to the above.