Thicker Ear Plates for Putting Under a Baseball Cap

My head is just too big for most hats, including the ones sold by Disney.  I wanted to have an ear hat, so I used Tim J's model and rather than attaching the plates to a headband, I put them under a baseball cap that fits with the ears on the outside.  However, when I used the default plates by Tim J, I found the ears were too floppy because the fabric of the hat could move around.  I fixed this by making the ear plates wider, giving more of a base and allowing the plates to be under the hat without the ears flopping.