Like Brendan, I use the rubber ear hooks so that they fit into my ears better. I wanted to use a dremel to shave a bit out of the charging case where the airpods sit, and some also out of the cap of the charging case, so they will fit into the charging case with the rubber ear hooks still on. I was wondering if damage anything by doing this? Or will I just be removing plastic from the case, without any risk of cutting into something important? For instance, is there something in the cap to indicate to the iphone that the cap of the charging case has been opened?