There is something interesting happening with the Opuntia pads that Loree of danger garden sent me last year, which I posted about here. I don't know enough about Opuntias to tell what they are, but both plants have these little tentacled things erupting on several spots! I don't think it's flowers, but could it be new pads?
If it's growing new pads, that means it's happy where I put it. And if it's happy, then I'm happy!