Yo Baja, I went outside into the freezing windy afternoon to check out some plants and while your plant is much larger it looks like a couple of my smaller Mammilaria spinosissima 'Red Headed Irishman', babies and all. Xuling
Hehe. Must... restrain... impulse to pop a couple of heads off for propagation.
Thanks for the ID. That could be it. I will have to study some more pictures. I guess I can expect yellow flowers. The body of the plant is a bit blue, actually. That doesn't really come across in the photos. It was growing in day-long sun.