Help making an Alien Xenomorph part

Hi community,

I'm wondering if you can help me, I'm trying to determine what this part is made from as I am making my own life sized Xenomorph Big Chap. I may be able to find some disks to glue together to make that main cylinder. However the end on the right hand side that looks e a nozzle or some sort of screwing hose part, I have no idea what it is (image in the right with a circle around the part). Can anyone help me? Thanks :)


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