I have what you're thinking of ordering, but these tangle toys are even better:
They're so compulsively malleable in your hands, they twist and turn around in your fingers, can be kneaded, stacked, rotated, twisted all in one hand. The segments glide effortlessly and keep your fingers twisting and turning. I have a bunch of them stuffed in bags, pockets, drawers. I use them in meetings or in stores mostly as they seem to calm me a bit. Best of all, they're dirt cheap.