I'm not sure if I have contributed to this thread yet. I've been meaning to for a while now, but I didn't find any comments left by me, soooo... (I know I contributed a few to the non-shiny charm thread before I got the charm.)
I'm going to hatch 100 aron eggs today. Parents are a flawless Japanese ditto and a 5IV female aron that I hatched myself in my English game. Will update as soon as that batch is hatched.
I really wish I had been keeping track of the eggs I hatched over the last few weeks. I got lucky: in about three or four hundred eggs, I got a shiny growlithe, shellder, and aron! I wasn't even intending to get the shiny shellder. It just showed up when I was trying to hatch a flawless shellder. I still want a flawless aron, so I'm going to hatch some more of those.