Hangyodon Puffy Stickers Puffy stickers feature a three-dimensional embossed finish, making them perfect for decorating smartphone cases and stationery. With a transparent base, they look great as accents in planners, for card making, and for decorating notebooks, and are also popular as gifts for friends or for sticker swaps. Here are some ideas for how to use them: Smartphone/Small Item Decoration: Stick them on smartphone cases, mirrors, pouches, etc. to enjoy original decorations. Even new, unused items may have some minor damage or initial scratches on the outer bag or packaging. I handle them with care, but they are stored at home, so please refrain from purchasing if you are sensitive to such things (⁎ᴗ͈ˬᴗ͈⁎)