I've got a lightweight headset for my 5-year old, but even at the smallest setting, the headband is a bit big for her cute little head. I was thinking I could find a nice pillowy cushion for the headband which would make the ear cups sit higher for a better fit. But most of the headband cushions I find are not really pillowy enough to change the height much. Any suggestions for either a headband cushion that I can buy, or something that I could maybe adapt for this use? Thanks!