The Europlug is decent, but unnecessarily expensive. The pins are not parallel, in order to provide a better electrical contact. I would use flat pins (blades)

The Europlug is decent, but unnecessarily expensive. The pins are not parallel, in order to provide a better electrical contact. I would use flat pins (blades) because they are cheaper to manufacture, and make better electrical contact. Also the Europlug is too large, my ideal plug would be smaller. > IMO a recessed outlet is superior, because it provides some additional support It does that, yes, but it's not necessary for it to do that - it's an unneeded complication. And if that was your goal, just have one blade perpendicular to the other, then it can't slip out (it can only go straight back, it can't tip downward or sideways). Extra resistance to breaking off is simply not needed, it's not a problem that occurs in the real world.