Came here to say this

Yup, my "d2" in my dice bag is a silver half dollar. Still call it my d2 though.

Seriously... Some people...

One set of my dice have very hard/straight/flat edges... The fucking 4 sided has stabbed me many times, but once it went right under my finger nail and drew blood

Sir, what who describe looks more like a piece of paper than a coin.

Ideal coins are inflexible.

Ok, so a thin layer of adamantium is an ideal coin, but not a tiny disk of metallic alloy engraved with pictures, texts and values !

Well, an ideal cow is a perfect sphere, so.

And a very very funny joke, at that

So would you say I solved the case?

I think Skua might be right, d2?

How can it be a D2, I can literally see 3 sides with my very eyes.