How to make an oil lamp

I mentioned a few days ago that I was working on a little oil lamp. Well, I fiddled with it for a few days, tested wicks and oil levels, I now have a perfectly serviceable oil lamp that burns clean for hours, with no smell. I was looking for a replacement for paraffin candles and saw a photo of a small oil lamp on a website somewhere but when I made my own version of it, it burned for a minute