A bidet is a plumbing fixture that is intended for washing the genitalia. You sit on it the same way that you would a toilet and when you press a button, it shoots water into the appropriate areas. A commercial bidet can be expensive, and requires installation by a professional, but if you don't mind something that is simpler, you can make your own bidet for about $20.00 in 2010.
Buy a copper T-fitting tube. You can buy them for as low as $4 in 2010 from your local do-it-yourself hardware store.
Find a kitchen sprayer with a hose. If you have an extra one in your kitchen, you may use that otherwise it costs about $15.00 at Home Depot.
Attach the copper T-fitting tube to the water pipe that goes to your toilet using a monkey wrench. Then connect one end of the “T” to your toilet and other end to the sprayer hose.
Check the connection to make sure there is no leakage.Turn on the water spray by squeezing on the sprayer handle.