What's a good gift to get someone who's very wealthy?

If they are one of those who have all they want to be happy, I would say something from the heart would mean more. Best to say that if you really know them well, you can find something they will like, not cost a fortune, and make them happy. If it has to be, then a "Of the Month Club" would be delightful.

Personally, it doesn't matter what gift I get. I'm happy with anything because what the gift means is worth far more to me.
It means you are my friend, or I love you. You know?

Something meaningful and unusual and fun that they wouldn't bother buying for themselves.... socks with funny messages are a good standby.
mx:))

Something sentimental, possibly a hamper filled with little things they like (favourite foods, alcohol, grooming supplies etc)

If the person is actually, really wealthy, then he probably needs honesty from someone else more than anything else.

Something very personal. Like something homemade. A little basket with their favorite goodies maybe

Something meaningful. Or you could just buy some weird ass sculpture and claim it's modern art. that works too.

I made a personalized crocheted coaster for a famous person once. They loved it.

Those old people cookies in the round tin. Theyre suckers for them. Youre welcome .

A book about something that interests them.

Anything that you can give from your heart.

I wouldn't get them anything :)

A check to give to charity

tax audit

Humility

bacon