My knowledge of the Ordos culture is rusty, but I studied it long before I was seriously interested in beads. For art historians, it's primarily a bronze culture, nomadic and semi-nomadic, with a material culture made up primarily of pole-tops, knives, belt buckles, horse equipment (rein rings, psalia), and the like, all in animal form. Don't remember anything like the dice beads, but I wasn't paying much attention to beads at the time. I'll see if I can scrape up anything in my books & notes . . .