I'm gonna toss Key to my Heart out there. It DID have days with a thinner, pinkish-white edge, but more often it was a thick, pale pink edge like in June 25:
Then there was June 17, when it looked like a pale pink flower with a red eye zone. I LOVE that the edge is so variable, but I bet that might drive some folks over the edge.
I ordered a DF of KtMH over the winter. The grower said he only had 2 fans left and didn't want to sell both. He offered me one fan for half price. I paid $4 for it!
