Melt the candles in an old pan. When it reaches it's complete melt point stir in saw dust, or wood shavings and completely coat them. Quickly scoop out mixture and put in cupcake trays with paper liners. When it reaches it's melting point, carefully pour into the glass containers you've collected. Now add a wick by tying it to a popsicle stick laid over the surface of your container.
Old cans are particularly popular.
Treasure Chests You can make these out of almost any kind of containers. Simply covers with the gummed Contac paper, individualizing it for each child. You can seal your bottle by adding a cork and dipping the whole thing in melted paraffin a few times. Now add a pretty ribbon or silk flower and you have a beautiful gift. Fabric Picture Frames Use cardboard as you pattern and cut out fabric to cover the pattern, plus extra for the stuffing.