chocolate money

I was planning on making a treasure chest cake for my son for his party this weekend. I really need some chocolate money. I have been to a couple of supermarkets and lolly stores with no luck. It seems they are a seasonal sweet and no one has them anymore.

Has anyone seem and bags of chocolate money in a store in Brussels in the last week or so? I am in WSP but can drive, so as long as its not too far I will go further afield.