Nintendo Joy-Con Mod With RGB L.E.D's you can have any colour you wich, controlled via a mobile app, set solid colours, fading cycling and even to the sound of music (that your phone can hear) disclaimer white will come with black sticks unless discussed otherwise.
 
these are the exremerate shells, so I have not listed all the colours but if there is some thing you really want, that is not listed, then just message me and we'll talk. :)