The stores have way better options than the online site does. Last winter, I bought plain matte white crowbars with the intention of dying the parts when I was tired with the look of them. BUT this summer I hit up the Oakley stores in Mall Of America with the desperate hope of them having parts, and sure as shit, they had some parts. It was out of season so they didn't have a massive selection, but that was better than nothing.
I bought all this shit for like $60
And buying these parts allowed me to do a totally split goggle which is some sick shit.
Aha, they don't even look like the same goggle. (sort of...)
Not sure if the Oakley store will let you buy parts in season, but if they do, do it up and but just a plain-jane goggle, like all black or all white. Then go ham with parts and change it up when you're bored again.