These are so easy to put together and look really impressive! I used the measurements given in this post by Bakerella. I was hoping to find Christmas coloured mnm's but I couldn't. I ended up using these orange and white mnm's that are jaffa flavoured. I think they look quite good but probably a bit more Halloweeny then Christmasy. Oh well!
I found the jars I used in Kmart. They are about 1 litre and the perfect size for this mix. I topped them off with some scrap fabric and some ribbon that was leftover from Imogen's christmas outfit. I think these make quite cute little gifts and I would love to receive one myself.