take a trip to your local gardening store for those supplies, pick your succulent and then add a few embellishments. Teachers and Grandparents would love this gift from kids! This post tells you how to layer the soils for a long, lasting plant.
pickle jar terrarium - wonder how long they last - seems like it would run out of air or nutrients or something, and once you unscrew the jar again, you wreck it - but maybe as a more ephemeral terrarium project. and it's just a pickle jar!