Until such time toddlers are given mobiles on their 5th birthdays, parents will have difficulty keeping them wrangled in and safe from danger. This Wristlet from Petr Hampl might be a useful solution in the mean time, allowing parents to send messages, alarms or graphic symbols to the solar powered display. Better hope they come in other colors, I don’t think pink would fly very well with boys. Designer: Petr Hampl