labor of love
something done for personal pleasure and not for money
The man's painting is a labor of love and he does not expect to make any money from it.
Uncommon Fruits and Veggies
Native to Jamaica, ugli fruits are a combination of grapefruits, oranges, and tangerines.They are sweet and juicy, and their wrinkly, yellowish, ugly peel does not do the inner citrus segments justice.