When I was young and my mom used to wash my hair I would always move my head around and never hold it back far enough for her to rinse it.
So she had this idea and told me to look for the butterflies on the ceiling, which always made me tilt my head back far enough and hold it still as I searched for these butterflies. I swear I saw them a few times! She did this until I was old enough to wash my own hair like a "big girl".
Still to this day when I see butterflies I feel the warm sensation of warm water running down my back, and I feel carefree like I was little again and didn't even have to wash my own hair and I cant help but smile.