Learn to play the harmonica

From 2 to 102, the harmonica is suitable for anyone to begin playing.
You don't need to just play blues music (the style most commonly associated with the 10 hole diatonic harp).
Anything from jazz to country to hard rock to anything else you can think of lends itself to the harmonica.

The harmonica is a great instrument to learn for a number of reasons.
Not only is it affordable (Prices start at just a few dollars), it's also perfect to take with you anywhere since it fits easily in your pocket and is quite a versatile instrument for different music styles. I have heard harmonica used in Folk, Blues, Jazz, Rock, Classical, Country and even Beatbox - and no doubt it has been used in other styles too.
A harmonica is an instrument that can be both simple and complex. You can learn basic playing skills in just a few minutes and spend a lifetime perfecting amazingly intricate and varied techniques. The truth is you can't outgrow this amazing instrument.

To begin playing the harmonica all you really need is an instrument and perhaps a beginners book and CD package to help you with the basics.
This is how I began and set myself a target of five minutes per day to get the feel of the instrument.
You'll find that this will increase as you get to know your instrument and master some of the exercises in your lesson program.

Most lesson books are written to accompany a harmonica in the key of C (so make sure you buy one in this key).

When choosing an instrument it is better to avoid the cheapest harmonicas since they are actually harder to play.
You also have a choice of materials combined with metal (plastic or wood).
While wood offers a more mellow sound, most people prefer plastic since it is unaffected by moisture and has no sharp edges to cut your mouth).

A well made harmonica should have smooth metalwork without any jagged edges.It also should be comfortable to hold and easy to blow.

I personally like Lee Oskar harps and Honher is also a good brand. Suzuki also makes a nice harp.