subject: Two kinds of tattoo machines –General Knowledge [print this page] Tattooing is a serious business and artists should know all about tattooing before they start off with marking someone with a permanent tattoo. Remember to always cater in the safety precautions and sterilize the needles and throw them away once used, or buy disposable tattoo needles which are pre-sterilized and individually packed with a indicator to show whether the needle is safe or not. There are also some other one time use tattoo supplies available on the market, with them you could organize your tattoo parlor without investing an expensive autoclave.