Some £350,000 worth of unwanted foreign currency was collected from passengers on Aer Lingus flights last year - the first year of the UNICEF/ Aer Lingus campaign, "Change For Good". Actor Liam Neeson appeared by satellite link-up in a Dublin hotel yesterday to mark its first anniversary on Aer Lingus flights. Children in 160 countries benefit. In the scheme operated by 18 airlines, Aer passengers have been the most generous, with 21 per cent of them contributing last year, compared to 6 per cent of British Airways fliers.