Invented by the Dutch magician Fred Kaps, is the Kaps Subtlety. This move is a natural extension to the Classic Palm. A very simple maneuver that only involves two things: Classic Palm and turning your open hand towards yourself. This gives the audience a good view of your hand, while still keeping the coin just out of their eyesight.
If this is a little too subtle for you, though, Gary Kurtz' variation of this move may be more your speed. A bit more stylized and flashy, you'll need more coins - but, your angles are less sensitive here.