Couple Mistry tools?

Can't help on the rest of them, but I'm pretty sure the one to the right of the cardboard box is a fly-tying vise for fly fisherman that make their own. It should have a split end on the tapered upper right part of the gizmo. That holds the hook still while you tie your fly.
The trianglet are welding clamps, the round thing is a welding ground magnet.

Next is a square spanner.

Then pulling jaws for a slide hammer?

Pistion ring compressor

Next one could be a fly tying vice.

Last ones i cant see good.
Eff me! Yea a piston ring compressor!! Haha I knew what it did I just didnt know what it did it too! Haha know I feel like a dumbass! I knew I had seen one of them before now I know where!
You sure do know your tools!!