In their product round up, Yahoo Sports mentioned AirSquares as the BEST FOR CLEANING CREVICES.
"If you’re looking for a quick way to clean out the part of your AirPods that comes into contact with, you’ll want to use a putty option."
With the putty, AirSquares will clean those crevices not only on your AirPods and earbuds but also on your keyboard and other devices.
They key is the press the putty gently and then roll it off. You'll be amazed at what AirSquares will remove. Say goodbye to ear wax, debris, and dust and say hello to better sound and a devices that looks more like new than it did just a few moments ago.