Etsy seller Kilroy’s Attic makes folding brass knuckles designed to look like the Xenomorph from the Alien movies. I wouldn’t want to face a terrifying space creature that thinks I’m an incubator with just a melee weapon, much less one that only works at point blank range. It’s really beautiful though.
It starts out as a ring, but unfold it and you get full-length knuckles.
One drawback to its design is that you can’t switch it between its two sizes in a single motion. You need to remove the alien’s head to lock the unfolded knuckles into place. Also, it’s not actually made from brass – it’s constructed from pressure-cast dyed resin, with sturdy strands of test line to keep the hinges working.
You can order the knuckles from Kilroy’s Attic for $55 (USD).
[via This Is Why I’m Broke]