Money Bouquet
If you’re indebted to someone the best way to pay them back is with money. That’s pretty obvious. But giving cash feels a little impersonal, like you just bought their help. Turn that cash into a money bouquet, and now you’ve got a work of art, which they’ll feel better about accepting. At some point in the future they will pull it apart and spend the cash. Which is what you wanted in the first place.