These are some squishy chianmail balls I have made.
While technically dodecahedrons, they mostly flop into a ballish shape.
The top left and bottom two are both the same link count, although there is a minor difference in aspect ratio (AR) between the tiny ones and the big one.
If my math is right, all three have ~786 links. This is due to using 3x the links on the 'flat' side, as to make it squish instead of flat.
The top left is using stainless steel 18ga 3/16" links.
The bottom left is using stainless steel 20ga 1/8" links.
The bottom right is using titanium 20ga 1/8" links.... and is soooo light!
As for the top right, this was an imperfect experiment.
The previous experiment, using 20ga 3/32" links 1x on the flat side, was niether self supporting nor squishy... it just kind of dimpled in an unsatisfactory way and you couldn't undimple it...
Anyway, the one pictured used 20ga 3/32" for the linkages, and 20ga 1/8" 2x for the flats.
It turned out without the ability to support is self at all, so I put a 1" wood ball in it.
It is amusing to play with, but there isn't as much fidgeting possible with it.
I'll see about adding a youtube video so you can see them in their full glory.
Not pictured is another 18ga 3/16" ball made in aluminum, which I have given to a friend