After getting a few reference photos from the internet and figuring out the scale, I souced some of the parts from pvc tubing of the right size and diameter. For the large spikes, I built a box around some pvc tube and filled the negative space with some smoothcast resin to make square tubes.
I then made the pyramid shaped end pieces out of sintra
I put it together and made the raised parts with Smooth On's Free form earth, which is pretty much identical to Apoxiesculpt.
I made a prototype plaque-thing-detail-thing from sintra and cast 2 copies to be more durable and be the same on both sides.
I started on the top part, which detaches from the base and is attached by a chain. I once again made the spikes from sintra and cast them in Smoothcast..
Whenever I cast something in the shop, I often have a little resin left over which I will pour into a plastic cup. I will keep doing this until eventually the cup is full and when I need to lathe a part, I just peel off the cup and chuck it in the lathe ! I used one of these to make the handle spike, getting the round shape right first and then adding the facets with the belt sander.
Finally, I attached the plastic chain to the spikes, and to a slide that slides up and down inside the handle, stopping at the top.
I bought some leather strap from Joann's for the handle, but it was stiff and new looking so I had to distress the leather. I rolled it, folded it, twisted it, and even whipped a maple tree with it to get it softer and distressed, and it worked !
I had never tried to do the level of weathering that I tried on this project, I learned some new things and went through at least 5 paint jobs ! I finally came up with a prop I am proud of. Thanks for reading !