Shiny ziggies are easily recognizable. You don't give them enough credit.Any shiny that has barely any difference is pointless (Zigzagoon, bidoof, gible...)
Actually, I have a shiny Linoone in my PBR storage...and I'm convinced that they didn't alter the color on its model at all. Still looks brown to me. Poor Linoone. I'll need to catch a normal one to compare though.
I have a shiny mime jr? Its too cute... TOO cute! i mean i'll die from its cuteness! Its so cute it won the master rank cute contest without any poffins!