This is applicable to only those who are filthy rich and want to do something worthwhile with their money.
Each town and city has many old buildings, both public and private. The idea is freely offer the services of painting them new with nice colors to give them an aesthetic look. Recently I went to Chennai and saw a metro station. It is an elaborate building and looks quite nice. But it is in extremely shabby condition. If one were to paint it nice, it would become a major landmark and add to beauty of the city.
Just go around the city, you will see many building which require a free paint. Go ahead and splurge your money for a good cause.