I can't take credit for this lovely idea as I saw it at a Xmas fair in the children's craft tent. You can buy lots of different 'stain glass' stickers in different craft stores. I decorated my glass jar/mason jar using Christmas stickers. I also wrapped thick wire around the edge of the jar and created a handle before using sharpies to colour the glass in. They look so beautiful in the dark and the colours look beautiful as the light shines through.