These are really comfortable and look really cool, and I got a cheapo one from H&M. It's like half of a corset. You can actually breathe. I'm picky about bras and I love this kinda-granny style. I'm on the hunt for more though: they are impossible to find. I was optimistic when I found Top Shop carried them online:
But no luck at the store. Plus, while Top Shop always looks cool in photos, their clothes are actually pretty cheaply made. I took a look at their lingerie section, and the bras were flat and cardboardy.
I don't know how I'd feel about wearing a bra as a top, but waistlines getting higher, who knows!