Emergency Money

My Mum had a gold charm bracelet - she didn't wear it very often, but when she did it drove us all mad - jangling away whenever she moved....
These are the charms - removed from the bracelet ..... this centre piece always fascinated me.  It was a GB Pound note (remember them?) all folded up very, very small.  The theory was if you need some money in an emergency and were wearing your bracelet, you could break the glass and have £1 to help you out......  No idea how you would replace it :-)