Really liked the simplicity and clean look of the Joycon Grip with Front-Looking LED Windows which is a remix of a remix by ecoiras - but felt it was a little wide for my kids hands. So i've made it a little narrower and even found it quite comfortable for myself for everyday use.
Model prints upside down with no supports and I've added a brim on the .3mf file just in case.
I've printed mine in PETG but PLA will work just as well.