Yeah, you can buy cooking oil decorative lamps. They have a clear bowl, fill it with wesson oil, and this little wick on a base stands in the middle of it. They were pretty popular back in the day, but getting knocked off by a frisky dog or kid caused a lot of house fires.
Come to think of it, I haven't seen them around in awhile.
Come to think of it, I haven't seen them around in awhile.