You moved in with him???
Definitely check the attic or basement.
No, his wife came with a family like my wife did. But it’s a success story. He was 14 when his dad died and he was like our first son. Taking longer to get our real kids out of the house.
Back when my dad worked at a sewage treatment plant, the plant would occasionally get phone requests to look for either diamond rings or money. The story was always that a girlfriend or wife had gotten mad and flushed her ring (I’m done with you!) or cash (You said you’d never gamble again!).
I don’t remember a story about them finding a ring at the plant, but several times floating bundles of money were found. It’s possible that a past tenant or owner had flushed down the ring and it was heavy enough not to make it past the S-bend.
A kitchen table (found buried under multiple storage items in the basement)*.
Miscellaneous Christmas ornaments that showed up in the ornaments box without any trace of where they came from or how they got there.
*Apparently it was my sister-in-law’s. Hubby told her she could store it there and it got promptly buried under a sheet and miscellaneous boxes. And then forgotten. Years later, as the movers carted it off the truck to our new house, I was highly confused, never having seen it. They rolled their eyes at my apparent senility.
Likely it was indeed either flushed deliberately, or dropped accidentally. I think it must have gotten slightly past the S-bend, since she’d lived there for several years at the time it turned up. In any case, I think it’s a hysterical story. I’ve certainly never found much of any value in MY toilet!!
What song was it?
A guy I know shared with me that he likes to leave odd little things behind when he is in someone’s house. So, if he is one of several people at a get-together, he might leave a single condom in its package behind a pillow on the couch. Or a can of smoked oysters atop the refrigerator.
His “fetish” led me to carefully gift wrap an absolutely horrible porn DVD and leave it on the gift table at a friend’s wedding reception. All his elderly relatives cracked up, passing around the box. I never confessed and the groom never accused me, although he frequently discussed with me who he believed was the “sicko”.
Bible Dreams by The Wild Swans.
I still never heard of them. 
I think their wikipedia article is longer than that of the Rolling Stones, almost, for never doing all that much.
Me neither.