Unused Bonbon Drop Seal Koupen-chan I purchased this at Kiddyland shortly after Bonbon Drop Seals became popular. I used them as reward stickers at home. My children could choose one sticker for each chore completed. These are the remaining stickers. Therefore, I wrote names on the back of the backing sheet, so there are magic marker marks. The stickers for sale have not been peeled from the backing sheet, so I believe the adhesive is still good. I will take waterproof measures and ship via simple mail.