I had an idea to mount my Nintendo Switch to the tray table on the seat back of most airplanes....I had a lot of air travel coming up and had lots of opportunity to test it out.
I started with the wall mount that holds the Switch and made an angled clip that I thought would be generic enough for various airlines/airplanes.
It worked perfectly....except for one issue - at least on some Air Canada planes where there is a top lip that the tray table closes into (see photo) as it can potentially block the headphone jack...an L shaped headphone plug (or adaptor) solves this issue.
I've uploaded a v2 that moves the Switch mount a little lower that should alleviate the headphone jack issue but it's untested at this point until my next flight.
Note that while it seems to be a good angle for play, it's not conducive to having food or a drink since the table is up.
Most of the time, I opted to go with the stands on the tray table thing.