Is there a way I could buy and gift shares to my nephew who's a month old?

I have seen a couple of posts(on X and reddit) where people have shared the story of how those shares have increased in value by the time they turned 18. I wanted to know if theres a way I could do that? Also the thing is I don't want to buy it with my Demat account and also I would love to have a physical copy of it so I could give it to my nephew's parents. Help would be really appreciated and I would pray your portfolio increses better than the market average.