Further contributing to the thread on the ZF1 parts, I would like to submit for your review what I THINK is the found part used for the "Stand" of the zf1. This is the knobby thing that is underneath it.
For reference, here is a picture of HALF of the stand, as it sits on my workbench.
I believe that this was made using some fishing practice casting weights.
So say you wanted to practice your cast in your backyard without the fear of snagging little billy by the eyelid. You would attach one of these to your fishing line in place of a regular, hooked lure and go to town.
I do not know FOR SURE if this is what was used, but they sure do look right.