Not sure which board to post this question..so moderator please move as see fit.
I'm looking to buy a large cork stop (cork toppers are they called?) about 1.5 inch diameter for my glass water pitcher. The original soft rubber stopper is very hard to clean. I always find black substance in the crevices that doesn't come off even with a strong brush.
In Manhattan I've looked so far in Gracious Home, Bed, Bath & Beyond. No luck. I see one source online that may work, but would like to see them in person if possible.