This white ceramic dish with two points could have many uses. I've seen it advertised for $16 on Etsy as a "Bandwagon White Baked Potato Cooker, His and Hers Ring Dish, Apple Cooker Ceramic Dish". Perhaps it could also be used as a novelty ash tray, or to serve a stick of butter so that it won't slip off?
It measures 7 & 5/8" wide x 5" deep x 1.75" high
I have lots of other items for sale on Craigslist. Please have a look by clicking on the words "More ads by this user", below (just above the map). If you want to buy items from sev6eral of my ads, I'll probably be willing to offer a discount.