Does anyone know where I can find a chain tripod stabilizer? I'm looking for one similar to the one I used to use.
My old one had a metal ring in the center with three chains attached to the ring. Each chain had a little plastic square with a circle cut into it to accomodate the tripod foot at the end. The chains also had little hooks attached so you could shorten a chain. I like the chains because they offer more flexibility over uneven ground, but all I see online now are stabilizers with three fixed length sections.
I made them years ago with a key ring in the center and small utility chains coming from it and connected to 2" or so square blocks of wood. You'll probably spend less than $5.
That's the one! Then again, making my own isn't a bad idea either! Thanks guys...
Mingolo in Hackensack sells them.
Ralph
I've often wondered about the effectiveness of those devices and particularly in windy conditions.
I drill small holes for the legs tips and use a bungee cord to anchor top of legs to the deck. If needed drill a roof screw into bitumen or concrete.
I found these to be very useful Knotbone Flat Bungee 
Often just the hole for the legs tips give me the stability needed. Doesn't need a huge hole, just a small "pock mark" does the trick.
I haven't had a set of unattended (or attended)legs move when tied down this way.