I really hated to have to tell this guy, but copper contains arsenic.
There are many types of disposable filters on the market, but in this instructable I will show how to build one which is very cheap, reusable and you will let you to adjust how much you want to filter out from your cigarettes.
Step 1The materials
A wax candle
Some tape used to cover the pipe and avoiding touching the pipe with your lips
Coffee Filter or Cotton Balls (I think cotton balls have more density so it will filter our more tar)