15 days and it has started to sag a little bit, but still about 13" and still floating.
Nice balloon still.

6 days: about 12" now, sagging just a little bit over the floor.
Not sure if I used too much hifloat(it got quite heavy), but at the same time, not sure for how long they will float with it.
6 days instead of 1 day is an improvement, though...

After 5 days: shrunk from around 18" to about 13", but still hovering, though it seems like the string is starting to drag it down. Probably gonna hover for another day or two. Thought I used too much hifloat on it, but maybe I missed a spot or something?

Worth it though, haven't shrunk a bit even a day later, and it actually got more lift to it once it dried.

That said, the less I deal with this goo, the better.

That is impressive. Guess I'll need to find a hiding place for it when I get people over :)

Found the site through web archive, video is called Sydney's Huff and Puff, but the video files are long gone.
Sad... but I probably got much better videos now.
I don't even like smoking.