Do I show you an electron scan of half a bullet hole in a chewing gum wrapper and ask you to identify the bang-stick that made the hole? No!
Do I show you upper half the letter "H" in the manufacturer's stamp on the underside of the grate to the firebox of the sole-surviving example of an 1863 Hyrkano-Bueller steam-powered cartridge-straightener and ask you the sex of the cat that left the hair in the upper-left corner? No!
Okay, to be honest, John doesn't either.
But at least you get a decent view of the stuff I try to stump ya with, right?

Ta-daaaaaaa! Have at it, kids!



As for this one, I expect it's a helmet of some stripe, but the holes are a dead giveaway. Those are where you plug in the mind control beam receptors, of course.
Sheesh. People go to all that work...
Well, that or a bowling ball for very thin-fingered elves.
G
Or a left-handed cromulator. They are easy to confuse.
I win!
The protective cover for either an Oscillation Overthruster or a Flux Capacitor-difficult to tell the difference without proper reference, but the covers are essentially interchangable.
1918 Kaiser Wilhelm Death Star.
Cheers
All flights are subject to having "oh no! we're all gonna die!!!" moments crop up all the sudden and unannounced, so...
My guess is that it's a Turd Preventer with Gas Relief Valves - Insert Device.
Can't be having our pilots land with a load. It'd be unseemly.
And here I was going to guess it was the prototype for ChuckZ's new prosthetic.(Right one, 1 each
actual size shown), and final product in brass of course to match original equipment. ;)