John's Wand of Bubbles

•As an action, swing this wand through the air to create either 2d6 bubbles up to 6 inches in
diameter or 1d4 bubbles up to 3 feet in diameter.
•A bubble created by the wand lasts for 6 seconds
and magically resists bursting upon impact, but
can be destroyed early by dealing any damage to it.
•When a bubble bursts, you can choose for it to release a faint, musical note. You choose what
color the bubbles are each time you use the wand (although they are always transparent).