Picture number 2 looks like he has a massive STD ... I don't care if he had everything in the world going for him, I would never date a guy based on them doing that to their dick. It looks nasty and deformed.
It doesn't personally bother me, although something I wouldn't have done. I don't see it as any different from having a bunch of piercings or tatoos down there.
I'm not too worldly in sexual enhancing accessories, but don't they have silicon sleeves with bumps on them for the guy's member? If not, how did they skip that thought process to this as an alternative means to duplicate sex toys? Does it do anything for person who has the beads imbedded?