A compass on the modified Victorinox Swisscard
A Compass added on the Victorinox Swisscard! Tiny and very useful when walking in the mist with no smartphone connection. A professional implementation of a compass on such a card could undoubtly be smaller and flatter, not that the little compass bump be very disturbing (it feels just like another snap fastener of the wallet), but by adding 2 millimeters it would cut a bit the flatness argument.