Balloons are still around after all these years, and kids either hate them or love them. The ILLoom Balloons might help convince those from the former camp to switch sides to the latter, especially when these balloons come with a pull tab at the bottom which will activate an internal LED light to give the balloon an added spark. These balloons can stay lit for up to 15 hours, and will be available in 5 different colors where you can use either air or helium to fill up. $6 will snag you a pack of 5, where it is available in the UK only at the moment.
Source: Craziest Gadgets