The selection of canning jars is pretty minimal in the off canning season. Not sure how small you want them and not sure if this is the best price but Amazon.ca does carry a full selection of canning jars. I don't think you will find canning jars smaller than 125 ml though. You won't get free shipping for this item because they come from Golda's Kitchen. They are a Canadian company so you might want to actually go to that site and compare prices and shipping directly from there. They are a reputable company and I have ordered from them. I believe they ship by Purolator.
http://www.amazon.ca/Bernardin-Mason...l+canning+jars
Here is Amazon's full selection of canning jars.
http://www.amazon.ca/s/ref=nb_sb_nos...3Acanning+jars