Joy Con grip XL
thingiverse
Same idea as my last grip, https://www.thingiverse.com/thing:3458261 , just with a little more beef to it.
Download Model from thingiverse
With this file you will be able to print Joy Con grip XL with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Joy Con grip XL.