FLYING + LOGO = FLOGOS.
Based on a patented technology, FLOGOS are basically made up of soap and several gases including helium. They last around 30 to 40 minutes, they can travel up to 50 kilometers (30 miles) and reach an altitude around 5,000 feet.
Besides, these flying logos are 100% environment friendly.
If you need further information you can click this link.