I think he's asking on whoever knows of a short-working period kind of jobs, and what would the pay be like for the job we suggested.

In truth, we all know there are no short-period jobs that reaps good income.
And in general, the short-hours would mean the choice would be part-times.

How about teaching night-classes at tuition schools? That would mean after working hours, and its only a a few hours of teaching (I doubt any tuition schools would still be open after 12am)