A piece of jewelry that performs a function makes a great conversation piece. It's also fun to play with when you're standing in line. The magnifying glass comes in handy for reading the small print. The compasses will set you straight on which direction is north. The knives all have sharp blades and are useful for opening packages, cutting string, and lots of other things. The harmonicas are made by the Swan Harmonica Company and you can actually play a song on them!