The bookshop I bought them from no longer exists, unfortunately, which saddens me quite a lot because I saw it grow from a one room shop and expand into the buildings behind it. It was the best independent shop I've known for its diversity of books and my home town is poorer because it's no longer here.
It's called the Quirky Celts and is a UK site. Not sure what the postage would be like to overseas, though. It's usually expensive.
You might find this useful, though. It has links to some US shops. (I've been getting Lisa Parker's merchandise for years) https://www.lisaparkershop.com/usa.html
finally, this evening, it is. What gives? Should I be suspicious of it? Is our internet provider going to suddenly present us with an enormous phone bill?