I have used an empty and cleaned out nail polish bottle for years,
if it tips over it rarely spills more then a few drops.
In conjunction with the nail polish bottle, I use a 16ga piece of
brass wire, for a “brush,” that is just long enough to stick out the
top of the bottle, so I can grab it with my index finger and thumb,
I bend the end just ever so slightly and it holds one drop of flux.
The other bonus is that it wont melt if you add flux to an already
Theirs my 2 cents worth. From steamy 96F Hot Minnesota, yes folks it
gets steamy hot here . When its not -20 or -30F.
Robert L. Martin
<>< john 3:16