You table a coin, a folded up Lotto ticket and a key-ring, then turn your back on proceedings. Someone mixes the three objects around in the row. You now ask that they 'switch' the three objects around even more, as you direct them (sight unseen). They are then asked to pocket two of the objects, in different pockets, and hold the remaining object in their hand. You now turn to face them again and, after suitable concentration, reveal that they are holding the coin in their hand - they are! You then continue that the key-ring is in their right pocket - it is! Finally, though by now everyone has worked this out, you reveal that the Lotto ticket is in their left pocket - it is. This latter revelation is obviously far weaker than the first two until that is they unfold the Lotto ticket and find that the words "LEFT POCKET" are printed on it!