I brought jars from big w they range from about $25 to $35 depending on size. Can't remember how many you get though but I think it's about 12.

I boil a big pot of water and pop the jars in there leave them for about 5 mind at boiling temp then pull them out while the jar is hot I pour the hot liquid in seal with the lid then turn upside for a few minutes. Then turn them ride side up.