Adafruit Hakko Brass Sponge Solder Tip Cleaner [ADA1172]
This brass sponge is super glam and super useful. Preferred by many soldering pros for cleaning off the tips of their soldering irons, it never needs wetting, wont cool down the tip, and its slightly abrasive to remove caked-on flux. This model is made by Hakko so you know it's not only good-looking but a pleasure to use.
Hakko Brass Sponge Solder Tip Cleaner