Kateykrunch, we had/have, not sure if it is still on going, an appeal from Royal Berks Hospital, a couple of years ago, where they supplied envelopes and any coins, whether they were foreign currency, or sterling, could be donated . These were collected and sent to Bank of England ( I think) and the resulting cash was used to fund a Robbie the Robot type thing at the hospital. Sorry to be so vague, but it was a while ago, and our Charity shop also donated loads of foreign money. We did get a letter telling us how much had been raised, and I thought it was an excellent idea for using up all the odds and ends of defunct coins and notes from pre Euro countries, and pre decimal coinage.