It is becoming much more widespread for balloons being crammed with air in lieu of helium, as air-loaded balloons will not likely float to the environment or deplete the earth's helium supply. There are numerous occasion video games and school-linked routines that can use air-crammed balloons instead of helium balloons. https://balloon-arch-frame57653.therainblog.com/35500303/the-ultimate-guide-to-balloon-arch-frame