These decals or Temporary tattoos are designed to notify contact information in case the child gets lost. They contain name and phone, and are removed with soap and water.
At least it seems a better idea than tattoos that were made directly on the skin of small (temporary, yes) on a beach in Holland. Although these decals are well thought out, they are stickers, as temporary tempting tattoos could fall or be erased as appropriate.
The idea occurred to a mother from Washington (USA) who, after finding a lost girl in an American football stadium, came up with temporary tattoos for her children including the phone number or if they have any medical condition to attend to just in case.
Each tattoo includes two lines of personalized information (limited to 25 characters) or three lines in the case of medical information. A package is sent with two sets of 15 temporary tattoos that can be of different design and customization, and are also accompanied by special wipes to remove the tattoos.
The price of these temporary tattoos for emergencies It's about 20 euros. Perhaps it is best to be very aware of children and share all the time with them, especially in crowded places, although I also understand that as cautious as we are, with children a second of distraction is sometimes enough to scare us.
