Dirty Talk

question, not tip. i have a "zen" tray with sand and shells and things. does anyone have any idea how i would go about dusting it? i'm planning on making a bigger one, but i want to wait until i can figure out how to dust stuff in sand, and the stuff can't really come out. thanks

question- does anyone know how to make or where to find safe organic cleaner for a rat cage. i keep them as pets, just always looking for better ways to keep them clean and healthy