Here's the finished article:
The large jar with its lid slightly off is the one I used yesterday for dinner. I remembered just in time that I had wanted to take a photo. All of the lids sealed properly so although I'm not going to take any chances and will use these fairly quickly I think it was a good first attempt and I understand far more about the whole process now. If I can get my hands on a not terribly expensive gas one-ring hob next week I think I will go ahead and do some more. And I have big plans for next year.