55mm Mammoth d20: Blue Eye

The liquid core really does swirl when you roll it, and the blue eye pattern looks even better in person. It's heavy enough to feel substantial in the hand without being awkward to actually roll. My whole table keeps passing it around between turns.

The 55mm size is genuinely impressive and the glittery liquid swirl looks great when it rolls. That said, it's so big it's basically a display piece