where to buy local bait stations that you can put snap traps in?

Hi there,

I am trying to address an outdoor rat problem. I want to avoid as much as possible harming any animals other than rats. I am thinking to have snap traps inside bait stations. I just can't find somewhere local to purchase a bait station.

Does any one know a local hardware store or something of the type that would sell bait stations that can fit a rat snap trap (and would be unlikely to capture other types of animals like squirrels, if at all possible?).

I don't want to purchase off amazon.

Thanks so much everyone!