Cleaning the Apple Pencil

I love using the apple pencil, but I've noticed several areas that tend to attract dust and dirt:

- Inside the cap

- Magnetic closure between cap and pencil

- Hole in the top of the cap

- Under the tip of the pencil

Are there any officially sanctioned cleaning methods for the the pencil? I'm guessing putting my pencil in the dish washer is a bad idea 😝