Join Date: Jan 2011
Location: Central Colorado
Programs: Delta, United, American, Norwegian, Southwest, Frontier, Bonvoy
Posts: 200
If you have just a few left on your way home:
If flying BA they go through the cabin asking for ANY currency for their charity. Even old non-spendable coins which can be melted down.
Some airports (in Scandinavia I believe) have places to donate coins for charity.