Making an oil lamp from an orange rind and olive oil

Haven't tried it yet, but it would be amazing if this worked: http://www.portugalsmallholding.org/how-to/make-an-oil-lamp-with-an-orange/

Sometimes if you cut a tangerine in half, you still have pitch in them middle after you eat the juicy parts.

If you pour melted wax in the half, the pith is the wick already.