There are lots of harmonica related items you 'must have' and here are some now. Who could live without a harmonica necklace?
And what about a present for that pesky nephew or Uncle? How about a boxed set of 7 harmonicas? That will keep him quiet. Ok, maybe not quiet, but then again you don't live with him do you.
If someone you know has a harmonica and needs a birthday or Christmas present, they would be delighted to receive a box of seven harmonicas from you I would imagine. What could possible go wrong?