If it is for boys, you can send wrist pads, knee pads, table tennis bats and simple fitness equipment, which are generally liked by boys who love sports.
Besides, sports shoes and roller skates are also very good gifts.
If it is for girls, you can send hairpins, zodiac ornaments, combs, dolls and other gifts. And you can also give gifts according to her hobbies, such as painting, singing and musical instruments.
If the other person likes reading very much, you can send famous books and make a reading list.
I hope I can help you.