Ok, obviously, a Ghost looks like this...

...but pretend you don't have the picture. How would you describe a Ghost if you saw one for the first time? What is it shaped like? How does its shell move? I've been trying to describe one for the past couple of days and it's a really interesting complex shape made out of simple parts that's hard to describe simply. I'll post my own description later, but I wondered if anybody here wanted to give it a go. :)

If you attach a single tetrahedron to each facet of an octahedron, you get something pretty damn close to a Ghost. You'd need to hollow it out and place the eye there, though.

The float animation is when you have these same tetrahedra detach at a set distance from each of their respective face's normal and rotate around the normal of the quadrilateral plane of the octahedron. You also get some trippy blue lights with it.

...instead of an engineer? :p

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Someone dropped a magic 8-ball into a kleenex box and then smashed all of the box's corners inward.

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That was beautiful

Someone dropped a magic 8-ball into a kleenex box and then smashed all of the box's corners inward.

Hey, you stole my Magic 8-ball bit! I've been thinking that one for 2 years. Kleenex Box part is genious.

If I had photoshop, and any skill whatsoever with it, I would put a Magic 8-ball window onto the "eye" of a Ghost.

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It's like you've never played Destiny 5: Spartans

For the D&D players:
A ghost is shaped like two D4 dice intersecting each other, so that it looks like there's a small D4 placed on each face of a larger D4. There's a spherical mechanical eye visible from a cutout at one of the places where the edges of the D4s intersect at right angles.