I would like to put inflated balloons on the walls at a gift shop. Can anybody tell me how to do it? I would hate to keep on inflating the balloons every time they become disinflated? Any sugesstions?

They did this on mythbusters but with a child. I was wondering how many balloons it would take to lift a kitten. NO I am NOT going to try this, I am just curious.

I'm talking about the ordinary little party sized balloons. How much would that many helium balloons cost to buy? Has anyone actually held on to enough balloons to float away? I hope they had strong arms.

It's a science project regarding the invention of a new toy!