Modern pennies are mostly zinc, which means that jug would weigh about 114 kg. Each penny is 2.5 g, which means each kilo is worth 4 dollars, so the jug full would be around $450.
In Mombie Dearest, Hope Mikaelson gifts this talisman to Josie Saltzman as a present for her sweet sixteen birthday party. She later details that the function of this particular talisman is to "make quiet things heard" as it allowed MG to hear her when she was buried alive by the Necromancer.
means and how to use it. Et al. is an abbreviation for et alia (neuter plural). But it can also be an abbreviation for et alii (masculine plural), or et aliae (feminine plural). This phrase means “and others.” Most commonly, et al.