Parisian artist Clémentine Henrion created these Helium Eternal Balloons. They're made from fabric. I think the effect is rather lovely. From Henrion's etsy shop:
This "illusion" of an helium balloon is entirely made of precious or fancy fabric.
There is no helium in this Helium Eternal balloon : it is stuffed with kapok, like a soft pillow.
A tiny flap fixed at the top of the balloon helps hanging it to your interior's ceiling, hook it to a curtain rod, the top of a wall etc.
The key thing is to hang it up as high as possible, in order to recreate the magic illusion of a real flying helium balloon!
The most beautiful effect is obtained in setting a bunch of several balloons together, forming a "balloons bouquet".
Clémentine Henrion (Thanks, Kelly Sparks!)
