Can we call it a D2? I'd call it a non-monetary-gaming-fair-coin, but it's hard to reduce it to a 4 letter word like "coin" or "dice" that most people would understand.
I imagine a parallel world where chips are shaped like empty cones, so they can pilled but they are very bad as a D2. (Perhaps a world where chips are shaped like cubes is more realistic, also bad as D2.)