I was inspired by Lewis2e's Nintendo Switch Dock Wall Mount, but then had the idea to remake it from scratch to use it on the IKEA Skadis pegboard, because the original holes weren't suitable for concrete screws and the author didn't release the F3D file to fix that. 

This design works with Galvanization's SKADIS Universal Hook, so you can either download the hooks from there or here, they're the same. I suggest to print the hooks with 40 mm in Z instead of 45, that will allow you to insert them easier. Since the hooks will be the responsible of holding the Switch, I suggest you to use at least 3 walls and 40% infill, to make them stronger enough.

You will need to print 3 hooks and the mount. I printed mine with 0 top/bottom layers, but used 20% triangular infill with infill multiplier set on 3 using Inland PETG Purple and a 0.88 layer width (0.8 nozzle). It just need a little bit of support in the left corner for the light hole.

Mine had a little layer shift during print because of a failed and resumed print, but it worked like a charm. I hope you like it