I'd removed the ball before second posting here, everything actually looks pretty clean. Looking inside the ball the foam material looked maybe tinted by red dirt tainted water, but who knows, I've seen that black material take on a faint red color...age related or whatever. I'll hang onto it for now, everything is broken down so it's not really convenient to test at present.
A little side info: I'd seen a mouse a couple of times on the side enclosed porch by the dog food container, near the stairs leading to the basement. Likely scavenging stray chunks. I got him, snap trap. You know what they say, where you see one....So, had a hair clog in bathtub drain, had a mop bucket near those stairs in a little slide door storage space (hard to explain) catching water when I pulled the plug in the drain trap. Successfully cleared the drain with a snake. So pleased with the success moved on without emptying the water in the bucket. A few days later needed the bucket for something, so went to retrieve it. Yeah, pretty gruesome sight. Several dead baby mice floating in the bucket. My guess walked that pipe as they had perhaps done before and plunged to their death not realizing there was a bucket of water now there. Have set snap traps since, no mice.
So anyway, that's the potential type water in which the mic was submerged. Mouse urine and droppings, spiders, snakes(?). Maybe I'll start an Alice Cooper or Ozzy tribute band, or maybe a Metal band, some cookie monster vocals might sound awesome through that mic. Take inspiration from where it can be found.