However, it has a lot of other potential uses: you might be able to use it to track your child in crowded places someday and to pay for your purchases à la Apple or Samsung Pay. Lamm also believes that it could be used by the military to monitor soldiers' condition and location. At the moment, though, Tech Tats are just a prototype like most high-tech temp tattoos other companies and researches are developing. They include a UC San Diego team that created tats that can turn sweat into electricity, a group of Korean scientists making graphene tattoos and even Motorola, which is thinking of creating mic tattoos for your throats.