This isn't quite as big of a thing as a wedding ring, but something similar happened to me 2 summers ago. I am a school teacher, and I was resigning from my position effective at the end of the year (We were moving.). I had my classroom cleaned, and had collected everything I needed to turn in to the office for the end of the year, with the exception of my I.D. badge. It wasn't in my purse or my desk or my car, so I knew it must be at my house. I called my husband, and he looked everywhere in the house with no luck. The people in the school office told me not to worry about it since I was moving anyway. When I got home, I looked everywhere in the house--no I.D. Two days later, the badge was lying on the floor in the den. To this day, I have no idea where the cats had it hidden.