It tooks me a while to find the canning jars locally at the most unsuspected place -> the local grocery store! You might be able to get some help from some specialty store that carries jams and pickled food.
The canning jars would be the best and the easiest. If you really can't find them... like Wings says you can get some jars which has a rubber seal inside such as baby food jars. With a bit of practice, you might get the seal w/o a 2-part lid system. I buy baby food (50cent each) just for the sake of using the jar to store small items/liquid (2-4oz).