1 person: what fits in the hole when you place your index finger against the first joint in your thumb. 2 person, second joint. three person thumb tip. Smaller rations, loose fit, larger rations tighter fit. Try a few times to adjust for your hand size. It’s just a step above eyeballing, but shockingly effective.
Edit: Not that hole, I see you coming. And not coming that way. Jeez, the infantilism!
You want wild? I see it white and gold in the PC, and blue and black(ish) on the phone.