Those are looking great, Donald!
Here are some Mammillarias blooming in my collection, starting with the M. heyderi I received from you last year. Not quite as many seed pods, but quite a few and a flower with a lot more to look forward to:
M. marksiana, if I am not mistaken:
M. macrocentra:
M. spinosissima 'un pico':
and to finish a NOID Mammillaria:
