Find some one with a vacuum chamber, whack it in that and leave it for 10 minutes.

Big rubber stamp manufacturers who have made Optimark stamps, or Royalmark stamps in the USA may still have their vacuum chamber, I still have and use mine. Wonderful for electric drills and electronic stuff dunked in water.

Refrigeration mechanics will also have a vacuum pump for boiling off the water in refrigeration lines, but probably won't have the chamber.

Trust me, they work wonderfully quick.

Mick.