I missed posting pictures of cactus flowers in my Bloom Day post. Here is my recently planted Mammillaria elegans, just a very small mound of white and pink starbursts right now. And yes, quite elegant, I think!
Apparently I was not supposed to plant it out until the weather warmed up. However, it didn't seem to mind and has settled in. And as the weather is heating up nicely this week, I expect it to do well!
The spines seem to be more or less harmless, and the whole effect of the little plant is charming.