Hi guys Has anyone bought a machine off ebay? and if so are they decent to work with? And about sterilization...please don't flame me for being ignorant but i just wanted to know, when using disposable tubes and needles, can i re-use them if i'm only planning to practice on fake skin or pig skin or fruits? Sorry if its a moronic question...I know tubes and needles are cheap anyways and its not worth saving couple of dollars and risking infection but with regards to fruit and fake skin can i re-use dispoable or metal tubes without Proper sterilisation. Of course when i do practice on myself or others disposables are one time use only DEFINITELY! Thanks in advance.