The people who say shit like "I don't dream about labour" when asked about their dream job make me sad. It's not their fault and it's an obvious conclusion to come to in the environment that we live in, but they really do seem to make no difference between work, and being exploited. You do want to work, it is inherent human nature to want to do things, you just don't want to slave for shit wages while making profit for someone else.
If art wasn't an option and I didn't have to worry about being profitable, I know what I would be doing: Keep a little shop selling secondhand-thirdhand buttons and buckles.
Thrift shops and secondhand stores could dump (or sell, whatever) their unsold and unwanted goods to me, and I could spend all day going through the heaps and picking them apart, plucking the still-perfectly-good buttons, zippers and buckles out of discarded things with threadbare fabrics and sell them.
Probably also making those little trinket storage boxes out of hollowed-out books. By hollowing out books that nobody wanted or read.