Let them learn music. If they haven't already. This is perhaps the greatest thing that you can do for a child's mind, soul, spirit, creativity, and imagination. It takes practically no money. I'm not saying to buy any instruments even. Just get them to learn to read music. And learn to write music. A book or two will do the job. Or you even have YouTube and certain available PDFs for free. And you can download almost all the great classical music on PDFs for free. Just do a search for what your want. It's not stealing, by the way. Most all of this music is in the public domain and is available on authoritative scholarly websites. Anyway, back to point. Kids may resist at first, or want to learn popular junk instead. Well, anything that peaks their interest is a good starting point. However, you yourself should hold to higher ideals, and eventually get them to learn to read the music of the masters. Start with simpler pieces by Mozart or Bach. And make sure you do Beethoven. Because everyone loves Beethoven. Or they will. The benefits of learning music is well-documented, vast, and well beyond the scope of my reply here. But suffice it to say, that children will be amazed at themselves when they find that they can do this. And it doesn't take very long. About 6 weeks is just perfect. And they will be then thrilled to discover that all of a sudden they could read and understand, and even speak and write, a whole brand new language. The language of music. For after all, that is exactly what music is. A language all its own. And one of the most beautiful ones ever given to human beings. And they will know this language forever thereafter. And it will forever enrich their lives, in ways that cannot even be imagined. And they will appreciate you for doing that for them, and they will continue to love you for it. Happy music. And joy to all.