There are a few resources online for make and do and regarding this easy peasy project here's one link from the 'Making this home' website.  It got me thinking about a jar I had just used up.  It's smaller than the usual size so perfect for earings and such.

1. Boil hot water with candle sitting in pot, careful not to let water get in jar.
2. When the wax was melted,pour it all into a smaller jar.  
3. Use a paper towel to wipe out the thin coat of wax and soot.
4. Wash in dishwasher

There was a  blob of 'hot glue' holding the wick base to the bottom of the jar, I couldn't get it off without breaking the jar (it was one of the smaller delicate ones) so I put cotton wool in the bottom of the jar since I was putting little bits of jewelary in it.

The lid is hollow, as a decoration I put little silk flowers I had worn in my hair, in the lid.  It sit's nicely with either vintage or modern accesories