Joy-con Wheel Extended Buttons
thingiverse
This is a remix of this design https://www.myminifactory.com/object/3d-print-nintendo-switch-joy-con-wheel-pro-29687 I've also included the remix link from Thingyverse as well. For some reason the buttons didn't quite line-up, for my controllers, and my son couldn't quite reach the buttons; I've redesigned it so they're farther apart. I didn't add the snazzy indentations that the original had around the grip. If anyone feels it makes a difference, I'll have a go at adding those.
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