Anyone who has ever longed to play the bagpipes, but was deterred by the cost of the instrument, may want to consider an article on Instructables which teaches how to build a set of bagpipes from recorders and garbage bags.

The site gives step-by-step instructions, and is illustrated with photos.

From the website:

This instructable is how to make a simple bagpipe like instrument out of basic household materials. Granted, it does not sound all too much like a bagpipe, but it works similarly and is fun to mess around with.