knowing that the cups and painting contain lead ( a dangerous toxic poison ) ayu or not ayu i will stay away from it
here is the link for those who would like more informations :
http://en.wikipedia.org/wiki/Lead_poisoning
i dont think they found more since it was a limited press and each online store had a limited quatity . all those are returns . some countries dont even allow you to import those kind of stuff so i m not surprise to hear they got so many returns even yesasia is selling it again