£1 for 20 Christmas cups from the Pound Shop! Put them in order... close your eyes..... take one away... whats missing? close your eyes ... swap 2 over.... whats wrong? Using just cups 1 - 5 (initially) hide the christmas bell under one.... give clue to your friends... its under an odd number, even, 1 and 3 add up to this, double 2 etc! we've had great fun....