Lucky Charms

{opened charm}

 {partially closed charm}

 {fully closed ~ source}

 {source}

{source}

INSPIRATION 2014 #76: Just in time for St. Patrick's Day ~ beautiful Victorian era four leaf clover charms. As is shown in the first three images, this type of charm folds into itself to form one single heart shaped leaf ~ when opened, a four leaf clover. While I can make a guess as to what the pig (wealth), flower (beauty), and four leaf clover (luck) mean, I haven't a clue as to what the mushroom or toadstool symbolizes. Any ideas?