I feed my snakes a variety of mice, rats and asf's and raise all three. they don't have to be too stinky. You change your litter frequently, you give them vanilla in the water and you keep male mice away from female mice except to get them knocked up.
It is pretty hard to have a small colony. I need at least 40 full size mice a month (or combination of feeders) That calls for a few mice/rats/asf's