Was not a big fan of playing games with the joy-cons separated with the shoulder strap things. I did like the controller grip so I figured I would just copy it. I modeled this just by using a caliper and eyeballing a lot of the angles by holding the real grip up to my screen so it isn't an exact copy by any means. But it gets the job done! Also fair warning there isn't a clip that locks the controller in place so take care if you're into frisbee golf games or you might send a joy-con straight into your TV. If the fit is too loose you could try adding a couple of dabs of silicone similar to how the real controller grip has a little rubber bumper. Or you could maybe try annealing it with hot water and see if it shrinks a little but I've never tested that.