Just find something around your house that looks like it would make a good piece, and just modify it to your hearts desire! This is my homemade pipe made from a Valve of some sort.. I don't use it much since i prefer my glass piece, but it's served me for a good 2 years;

http://i35.photobucket.com/albums/d1...8/S5030582.jpg
http://i35.photobucket.com/albums/d1...8/S5030587.jpg
http://i35.photobucket.com/albums/d1...8/S5030584.jpg