Willow hoped her bubble head charm for this task would hold up better than what she was doing in practice earlier. She focused herself as the students released the dungbombs, motion her wand in a counter clockwise direction around her head and said "Viseo Ebullio!" A bubble formed around her head and she felt it looked pretty good to last a bit. "I hope this bubble keeps in tack long enough for the smell to leave." she thought.