Cleaning a Scented Oil Bottle?

I found a gorgeous glass bottle at a thrift store. It's round, the opening is not very big, and it had a wick. The inside smells like cinnamon, so I think it was a scented oil lamp. I was drawn to it because it reminded me of a magic potion bottle or something, and I wanted to display it at my house. Don't judge me, I'm a bit of a fantasy nerd :P) But looking at it, I would love to be able to use it as part of a costume. Is there a way to clean it thoroughly enough to safely drink out of it? The inside looks very clean, but I am obviously wary about what may have been inside. As much as I would like to drink out of it I will not take the chance of getting sick. I might me weird, but I'm not stupid. lol