Shop Clean What Is It?

Was helping clean out an old shop and came across this. What is it?

Thats lefties secret rig to catch walleye

Duck hunting stuff. The box makes ripples in the water.

Looks like a rats nest to me

Decoy anchors for the most part.

Those are called "Texas Rig" decoy anchors.

Moosetrot

what do the batteries light up?

x3 if the "rippler" still works that center thing will spin but off balanced so the box shakes. You can put it in a decoy to make the decoy appear moving. They are used on predator decoys like a "riggor rabbit" to make them shake as well.