What's a weak base I can make at home?

I’m looking to find a weak base (somewhere in the pH of 8 to 10) that is fairly common or that could be made with fairly common household items. It also needs to be in solution indefinitely. By that I mean that no solid precipitates will form if it is left to settle. It’d also be nice if it was non-corrosive and overall not very damaging or harmful… Something like water but just a little more basic. Thanks!