How many years has the Garmin Edge series been around, and there's still not a good way to mount them on 22.2mm handlebars???

I've found 22.2mm mounts for TT bars, but they're sideways when mounted on MTB bars. Even dumber, none of those mounts can be rotated 90°, so they ONLY work on TT bars.

So, what's a good way to mount an Edge on a 22.2mm MTB bar? Or is this another reason to look for other brands of handlebar GPS?