Instructions for the pattern on the larger jar:
Steps 1: Using a size 5 needle, make a foundation chain of five stitches. Step 2: Work a slip stitch into the first chain to create a loop. Step 3: Work a chain of three stitches to act as your first treble, and then add two more trebles to form a cluster. Step 4: Work a chain of three stitches between each cluster all around your foundation loop. As my jars were quite narrow, I started out with three clusters, but if your jar is of the thicker variety then feel free to add another cluster.
Step 5: Start the next row by making a chain of three stitches to form your first treble. Step 6: Add two more trebles to the cluster, work a chain of three slip stitches, and then another cluster of three trebles. Step 7: Continue around the circle adding two clusters of three trebles into each space, and separating each cluster with three slip stitches. The result should roughly be able to cover the bottom of your jar. Step 8: Crochet the next rounds by adding a cluster of three trebles in each space, and separating with three slip stitches. Repeat this until your cover is long enough to fit your whole jar. My jar was quite tall, and I ended up doing thirteen rows like this. Once you're done, loop off, pull it on the jar and tighten.
Instructions for the pattern on the smaller jar:
Now light some tea lights and pop 'em in!