The current Zeiss SLR lenses in ZS (M42), ZE (EOS), and ZF (Nikon) mounts qualify. My 35/2 ZS (M42 mount) and the 85/1.4 ZE (EOS mount) have 9 blades, and I suspect the others do as well. They're all manual focus lenses.

I like the solidity of a lens with more blades and the nice round aperture, but that said, the optical design is a more important factor in the rendering of the out of focus portion of the image, and a lens with fewer blades stops down faster, reducing shutter lag.