Hey, a long time ago I made a mod called “More Ninvento” it may not longer be in development, but I made some graphics some months ago that got the spirit of this mod in them, those are simply self drawn versions of the 3ds familly that I call the “GS Vision” devices, I think there are all of theme in there, from the GS lite to the “Ninvento Next GS XXL” so if you want to make a mod inculding them you are free to use them from my side.
Link : http://imgur.com/a/hA8UK
I hope you like them and I wish everyone an exciting 2016 - can’t wait for game #2 @greenheartgames ^^